EIGRP Maximum-Paths

Community,
If I have 2 or more equal cost paths to a network where EIGRP is load balancing across them by default, if i issue the "Maximum-Paths 1" command, how does EIGRP decide which path to keep in the routing table and which to get rid of? How can this be deterministic in nature?

Hi,
2 links for you
EIGRP - load balancing
http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/13677-19.html
EIGRP Technology
http://www.cisco.com/c/en/us/tech/ip/enhanced-interior-gateway-routing-protocol-eigrp/index.html?referring_site=bodynav
Regards
Alex

Similar Messages

RIP/EIGRP maximum number of Equal cost routes

I am looking for documentation on:
If a router has 20 equal cost routing paths and only 4 show up in the routing table, what is the determining factor that chooses which four and where are the other 16 put in case the 4 routes become unusable.
Most documentation will tell you the maximum amount and how to change it but I have not found any documentation on how EIGRP or RIP chooses the routes.

You can have up to 4 by default, but you can configure the routing table to accept up to 6 on older code, and up to 8 on newer code, using the command "maximum-paths" under router eigrp. EIGRP will attempt to install all of the available paths, but the routing table will only allow it to install the first x that it installs.
The routes which are not installed by EIGRP are placed in a "backup table." If one route fails, each routing protocol running on the router is notified, and will attempt to install any routes (which match the destination, of course) back into the routing table. Again, the frst x paths would win.
Be careful with this much redundancy in eigrp--you're playing with fire if you have 15 or 20 links between a pair of routers.Russ

Load Balancing with OSPF and maximum-paths command

Hello,
Just a quick query really, we have a disribution layer 3 switch, in its routing table it has 3 default routes all with the same metric from the core router, this is because the core router is setup with the comamnd "default-information originate always metric 50" which obviously proagates the default route around the area and the metric never changes from 50.
So i have a routing table that looks like this:
O*E2 0.0.0.0/0 [110/50] via 77.95.176.9, 06:44:51, GigabitEthernet4/9
[110/50] via 77.95.176.17, 06:44:51, Vlan903
[110/50] via 91.203.72.5, 06:44:51, Vlan262
Three default routes with the same metric, does this mean that the router IOS will load balance traffic over all three routes evenly? I mean i have been reading up on it and appartemtly i dont have the command "maximum-paths 3" under my ospf process?
I have been doing some traceroutes from this switch to the internet (various sites) and all the traffic seems to be going out over the first route in the table that next hop is 77.95.176.9
My question is how can i verify that load balancing is taking place, or if its not then i need to add this "maximum-paths 3" command to the ospf on the local switch? I would say load balancing is not taking place but im sure i have seen traffic from one customer being routes over all 3 paths due to matching spikes on the SNMP sensors?
Many Thanks.
Matt

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Yes, your traffic should use all three paths, as Rick notes, OSPF, on Cisco, normally defaults to using up to 4 equal cost paths.
As Rick also notes mentioning CEF, how actual traffic is forwarded across ECMP can vary. Often, the device will keep all traffic for the same flow on the same egress port, and attributes selected for actual egress port selection might be deterministic. I.e. it's possible same traffic flow will always be sent to the same egress port. (This means even with ECMP, you may not see an equal load distribution.)

Maximum path length

Is there a maximum number of characters a file's absolute path can have?

When Mac OS X v10.6 Snow Leopard clients and servers are used exclusively, the path length limit is increased to *250 characters*. If any clients or servers in use are running an earlier software version, the path limit for the earlier software version should be observed.
More detailed questions of this sort should be posted in the Unix forum for best results.
Hope this helps.
Message was edited by: leroydouglas

No "Throwable" when maximum path length of NSS-Drive is exceeded!

Hi,
I have the problem that when I access a NSS-Drive (Novell Storage Services) via Windows (Java is running under Windows XP) that an exceeding path (bigger the 255 chars) produces no Throwable (Error or Exception whether checked or unchecked).
At my system the "Novell Client Version 4.91 SP 1" is running.
Even
try {
               System.out.println(new File(name).createNewFile());
              catch (IOException ioe) {
               ioe.printStackTrace();
              }returns true, but nothing happens on the file system.
Also new FileOutputStream(
                   name) doesn't complains.
On local ntfs-drives this limit doesn't applies.
At the moment I check if the path exceeds 255 chars and pop up a Warning about that, but that's just a ugly workaround.
Any suggestions to avoid this?
Is this a known bug?
Thanks a lot in advance.
Greetings Michael

If a file isn't created (with a truncated name) and there isn't any I/O exception then this is likely to be bug in the Novell Client or in Windows. The createNewFile simply calls the Win32 CreateFile function to create the file and if it fails then an I/O exception is thrown. Can you test with a simple C program to see if you observe the same issue?

6880 in VSS Mode and OSPF maximum paths

Hi Folks,
I have an issue observed in testing. We have implemented a VSS solution on the 6880-X-LE. We have two MEC L3 PO's upstream and thus two OSPF path's for our default route. After creating an event in the lab to put the boxes in Active - Active (pulled VSL links off SW1) and then go through the process of restoring the VSS (put VSL links back in) I noticed my additional path did not restore.
From the restoration perspective, it went as follows:
Sw1 - Active SW2-standby - pull VSL links
VSL PO goes down
SW1 - Active SW2 - Active (sub second traffic impact)
SW1 - enters recovery mode SW2 - Active
VSL links back in - VSL PO up
SW1 - reboots and comes up standby SW2 - Active
Routing table now only shows entry for PO200 and no routes can go out PO100.
6880#sh ip route
<cut>
0.0.0.0/0 [110/1000] via 192.168.0.253, 00:38:34, Port-channel200
1.0.0.0/24 is subnetted, 2 subnets
O 1.1.1.0 [110/151] via 10.86.50.253, 00:31:55, Port-channel200
O 1.1.2.0 [110/151] via 10.86.50.253, 00:31:55, Port-channel200
192.168.0.0/16 is variably subnetted, 59 subnets, 8 masks
O 192.168.1.0/25 [110/150] via 1192.168.0.253, 00:31:55, Port-channel200
O 192.168.1.128/25 [110/350] via 192.168.0.253, 00:31:55, Port-channel200
O 192.168..3.0/25 [110/350] via 192.168.0.253, 00:31:55, Port-channel200
6880#sh ip ospf ne
Neighbor ID Pri State Dead Time Address Interface
192.168.0.253 0 FULL/ - 00:00:31 192..168.50.253 Port-channel200
192.168.0.251 0 FULL/ - 00:00:32 192.168.50.251 Port-channel100
Can anyone help?
Thanks,
Rash

Hi Reza,
I can't post the configuration. However, I can tell you that I have a TAC case open with Cisco and they agree with me that this behavior requires further investigation. So the "PO" in question disappears seems to match when I get the error related to the a port-member not being compatible:
Jan 26 15:18:17 est: %EC-SW2_STBY-5-CANNOT_BUNDLE2: Te2/3/14 is not compatible with Te1/5/14 and will be suspended (speed of Te2/3/14 is 10G, Te1/5/14 is 1000M)
So what happens is that in PO100 you'll see only one bundled port and the other is suspended. This causes OSPF to withdraw the PO from the routing table (hypothesis but reproducible).
In our trial production launch, I performed the same test above redundancy force-switchover and you'll see both entries in the routing-table. Once the other modules come up and I get a suspended port-member that particular PO disappears from the routing table.
If you shut/no shut that PO, the PO returns as an available path in the routing table. In production we are not using GLC-T (as in the lab) but are using GLC-SX-MM. The bug that puts this member into a suspended state falls under the this bug id:
CSCur17071
What I missed initially is the fact, that the routing table removes that PO from being an available path even though it still has an active port-member.
Cheers,
Rash

EIGRP Best Path

Hi Guys
I have 2 routed links between two sites a 10G on 10G bearer and 5G on 10G bearer. Will be configuring EIGRP either side. How can I get the traffic to primarily use the 10G link.
May be a simple question for someone. Any help will be much appreciated. Someone mentioned something about using a bandwidth command.
Thanks

Hi,
The bandwidth command should do it. Here is doc with config example:
R2# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)# interface ethernet0
R2(config-if)# bandwidth 5000
R2(config-if)# end
http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/13673-14.html
HTH

Unequal Load Balancing with EIGRP over 4 Wireless networks

We are trying to load-balance on 4 interfaces that have unequal bandwidths. The setup looks like this
8 Computers -> Empty Config Switch -> 3560 Router\Switch -> 4x Wireless Radios on different frequencies - networks -> 3560 Router\Switch->Empty Config Switch -> 8 Computers
We have EIGRP setup and the bandwidths defined, and the routes are showing proper share counts, but once we start adding traffic to the network, they all jump on one of the links. The config and everything looks right, its just not working. I have tried switching to different cef algorithms. Removed the vlans . I made them equal cost and they did the same thing. Its like EIGRP does not want to load balance.
When i did this config with static routes or as OSPF, it actually load balanced them, but I'm stuck with a 1:1 share ratio. If i could control the ratio, then that would be an acceptable solution.
Any ideas on what could be causing this?
Code:
Routing entry for 192.168.104.0/24
Known via "eigrp 10", distance 90, metric 13312, type internal
Redistributing via eigrp 10
Last update from 192.168.2.4 on Vlan2, 00:04:25 ago
Routing Descriptor Blocks:
* 192.168.9.4, from 192.168.9.4, 00:04:25 ago, via Vlan9
      Route metric is 51712, traffic share count is 31
      Total delay is 20 microseconds, minimum bandwidth is 50000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1
    192.168.5.4, from 192.168.5.4, 00:04:25 ago, via Vlan5
      Route metric is 13312, traffic share count is 120
      Total delay is 20 microseconds, minimum bandwidth is 200000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1
    192.168.3.4, from 192.168.3.4, 00:04:25 ago, via Vlan3
      Route metric is 26112, traffic share count is 61
      Total delay is 20 microseconds, minimum bandwidth is 100000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1
    192.168.2.4, from 192.168.2.4, 00:04:25 ago, via Vlan2
      Route metric is 13312, traffic share count is 120
      Total delay is 20 microseconds, minimum bandwidth is 200000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1
3560_Switch_1#show int Fa 0/1 | inc packets/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3560_Switch_1#show int Fa 0/2 | inc packets/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3560_Switch_1#show int Fa 0/3 | inc packets/sec
5 minute input rate 17111000 bits/sec, 2545 packets/sec
5 minute output rate 13872000 bits/sec, 2251 packets/sec
3560_Switch_1#show int Fa 0/4 | inc packets/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
3560_Switch_1#show ip cef exact-route 192.168.101.57 192.168.104.57
192.168.101.57 -> 192.168.104.57 => IP adj out of Vlan5, addr 192.168.5.4
Here is the config.
Code:
ip cef load-sharing algorithm universal 00123456
interface FastEthernet0/1
switchport access vlan 2
bandwidth 200000
delay 1
spanning-tree portfast
interface FastEthernet0/2
switchport access vlan 3
bandwidth 200000
delay 1
spanning-tree portfast
interface FastEthernet0/3
switchport access vlan 5
bandwidth 200000
delay 1
spanning-tree portfast
interface FastEthernet0/4
switchport access vlan 9
bandwidth 200000
delay 1
spanning-tree portfast
interface GigabitEthernet0/1
description USER PORT
switchport access vlan 100
spanning-tree portfast
interface Vlan2
bandwidth 200000
ip address 192.168.2.1 255.255.255.0
delay 1
interface Vlan3
bandwidth 100000
ip address 192.168.3.1 255.255.255.0
delay 1
interface Vlan5
bandwidth 200000
ip address 192.168.5.1 255.255.255.0
delay 1
interface Vlan9
bandwidth 50000
ip address 192.168.9.1 255.255.255.0
delay 1
interface Vlan100
description User Data
ip address 192.168.101.1 255.255.255.0
router eigrp 10
maximum-paths 8
variance 15
network 192.168.2.0
network 192.168.3.0
network 192.168.5.0
network 192.168.9.0
network 192.168.101.0

Yup, that was the first cef algorithm I had tried.   ip cef load-sharing algorithm include-ports source destination
I tried all of the different types.
Also, I was sending data trough iperf from 4 computers + 1 comp steaming video on one network to 5 computers on another network. In any case of source or destination, it should have switched over. The odds of it all going on Vlan 5 is ~ 0.6%   Restarting the router sometimes places it all on a different vlan, but in any case its all or nothing.

EIGRP and Distribute-list commands

I am reviewing one of our WAN routers, on an infrastructure I have recently inherated, and noted an EIGRP configuration which doesn't make much sense to me. I'm wondering if I misunderstand the intent. The WAN router has the following EIGRP configuration:
router eigrp 102
variance 4
redistribute connected
redistribute static
network 10.0.0.0
network 172.1.0.0
network 172.20.0.0
network 172.22.0.0
network 172.24.0.0
network 172.25.0.0
network 172.27.0.0
network 172.30.0.0
network 192.9.200.0
network 192.9.201.0
network 192.168.0.0
network 192.168.2.0
maximum-paths 2
default-metric 64 200 255 1 1500
distribute-list 20 out Serial3/0.41
distribute-list 20 out Serial3/0.76
distribute-list 20 out Serial3/0.100
distribute-list 20 out Serial3/0.104
distribute-list 20 out Serial3/0.106
distribute-list 20 out Serial3/0.107
distribute-list 20 out Serial3/0.111
distribute-list 20 out Serial3/0.112
distribute-list 20 out Serial3/0.113
distribute-list 20 out Serial3/0.117
distribute-list 20 out Serial3/0.118
distribute-list 20 out Serial3/0.131
distribute-list 20 out Serial3/0.170
distribute-list 20 out Serial3/0.175
distribute-list 20 out Serial3/0.186
distribute-list 20 out Serial3/0.190
distribute-list 20 out Serial3/0.191
distribute-list 20 out Serial3/0.198
distribute-list 20 out Serial3/0.199
distribute-list 20 out Serial3/0.205
distribute-list 20 out Serial3/0.210
distribute-list 20 out Serial3/0.226
distribute-list 20 out Serial3/0.251
distribute-list 20 out Serial3/0.621
distribute-list 20 out Serial3/0.629
distribute-list 20 out Serial3/0.637
distribute-list 20 out Serial3/0.647
distribute-list 20 out Serial3/0.658
distribute-list 20 out Serial3/0.663
distribute-list 20 out Serial3/0.677
distribute-list 20 out Serial3/0.696
distribute-list 20 out Serial3/0.700
distribute-list 20 out Serial3/0.719
distribute-list 20 out Serial3/0.733
distribute-list 20 out Serial3/0.762
distribute-list 20 out Serial3/0.763
distribute-list 20 out Serial3/0.771
distribute-list 20 out Serial3/0.772
distribute-list 20 out Serial3/0.776
distribute-list 20 out Serial3/0.783
distribute-list 20 out Serial3/0.801
distribute-list 20 out Serial3/0.803
distribute-list 20 out Serial3/0.810
distribute-list 20 out Serial3/0.822
distribute-list 20 out Serial3/0.830
distribute-list 20 out Serial3/0.832
distribute-list 20 out Serial3/0.853
distribute-list 20 out Serial3/0.855
distribute-list 20 out Serial3/0.880
distribute-list 20 out Serial3/0.915
distribute-list 20 out Serial3/0.1000
no auto-summary
eigrp log-neighbor-changes
However, access list 20 is constructed as follows:
access-list 20 permit 0.0.0.0
access-list 20 deny any
If you have a distribute-list statement within EIGRP but the ACL permits 0.0.0.0, does that make any incoming/outgoing updates passive in any way? The remote routers connected to the WAN have no passive/no passive configuration parameters. Only the core WAN routers do.
Please advise.

Marking a remote stub does not, today, restrict what routes are advertised to the stub router, they just limit the queries to the stub routers. So, you'd still need the hub side distribute list to block the routes out to the stubs. A distribute list doesn't block queries, by the way, it just limits knowledge of routing information, which impacts how far a query will go.... You should definitely make the remotes stubs to reduce the query range, in other words, even with this distribute list configured.
At any rate, there is a feature planned for the future to make it where you could turn on an option at the stub router to make the hub router automatically filter everything but the default out.
HTH....
Russ

EIGRP Wide-metric support

It appears EIGRP only sends the classic-scale-metrics while operating in non-named configuration mode (E.G. router eigrp # ) AND Always sends the wide-metric format while operating in Named Configuration mode (E.G. router eigrp ROCKS) regardless of the 15.2 IOS version.
When my router is running in Named config mode, sh eigrp protocols reveals K6=0,
when I remove the Named config and use the legacy router eigrp # config mode, the same sh eigrp protocols does not list the K6=0 value (only K1 - K5).
The reason I ask is the Cisco white paper (EIGRP Wide Metrics) dated Nov 2012, states if a legacy EIGRP peer is interfacing with a new EIGRP peer, the new EIGRP peer will send both formats. - Is this doc outdated by a newer doc?
Thanks
Frank

Update- The original title should be referred to as EIGRP Virtual-Instance (that does support the legacy 32-bit metric and just might also support the 64-bit wide metrics; depending on your configuration).
Viewing the show command (Show command 1) based on EXAMPLE CONFIG 1 below, it's clear the K6 value is not used; only the K1 - K5 values.
If address-family vrf was implemented, as shown in EXAMPLE 2, it's clear the new wide-metric is in effect.
The question still remains, how does an EIGRP peer configured to recognize link speeds greater than 10Gbps interact with EIGRP peers that are not operating in 64-bit mode? What do the configurations look like for each of the peers?
ANYONE know?
Thanks
Frank
EXAMPLE CONFIG 1:
router eigrp TEN-GIG
address-family ipv4 unicast autonomous-system 200
topology base
exit-af-topology
network 192.168.1.1 0.0.0.255
exit-address-family
service-family ipv4 autonomous-system 200
sf-interface GigabitEthernet0/1
   authentication mode md5
   authentication key-chain MD5-PASS
exit-sf-interface
topology base
exit-sf-topology
exit-service-family
SHOW COMMAND 1:
R40#sh eigrp protocols
EIGRP-IPv4 VR(TEN-GIG) Address-Family Protocol for AS(200)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 10.74.10.5
Topology : 0 (base)
    Active Timer: 3 min
    Distance: internal 90 external 170
    Maximum path: 4
    Maximum hopcount 100
    Maximum metric variance 1
    Total Prefix Count: 6
    Total Redist Count: 0
EIGRP-SFv4 VR(TEN-GIG) Service-Family Protocol for AS(200)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 10.74.10.5
Topology : 0 (base)
    Active Timer: 3 min
    Distance: internal 90 external 170
    Maximum path: 1
    Maximum hopcount 100
    Maximum metric variance 1
    Total Prefix Count: 0
    Total Redist Count: 0
EXAMPLE 2:
R-64-bit#sh ip eigrp vrf DMZ topology 192.168.1.0 255.255.255.0
EIGRP-IPv4 VR(DMZ) Topology Entry for AS(200)/ID(10.74.10.5)
Topology(base) TID(0) VRF(DMZ)
EIGRP-IPv4(200): Topology base(0) entry for 192.168.1.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 1310720, RIB is 10240
Descriptor Blocks:
192.168.1.1 (GigabitEthernet0/1), from 192.168.1.2, Send flag is 0x0
      Composite metric is (1310720/65536), route is Internal
      Vector metric:
        Minimum bandwidth is 1000000 Kbit
        Total delay is 10000000 picoseconds
        Reliability is 0/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1

File path too long when collecting??...

Hi all,
REALLY hope someone has some wisdom on this! I've searched forums and the web and not yet found an answer....
I've got a MASSIVE project on an external drive that's on the way out, so I want to collect the project that's on it to another new healthy drive. The current file structure leaves alot to be desired (several years of updating the same project and splitting it into managable portions then importing them back together several times, files still on there that aren't in use in AE anymore but have been kept 'incase we need them again later', etc...you can imagine the mess!)
SO, I'm getting the 'file path too long' error when trying to collect it. Now, I could manually go through every folder and sub folder and tidy things up within AE - this would days about a week I reckon! - but I'll do it if that's the only way. What I'm wondering is this: -
A) is the problem AE is having with the deep structure *WITHIN* ae project, or with the actual folders/files on the disk itself?
B) if I tidy it up in AE only will that fix it?
C) is there an easier way to do this rather than manually going through everything and looking for the offenders???
Thanks guys,
Jim.

GULP....so I have to reorganise my assets OUTSIDE of AE and then relink it all WITHIN AE afterwards?? With 3 x 430GB projects and thousands of assets that is going to take a looooooooonng time.
What I don't understand (or like) is how AE will let you get this far without any warning and still operate/save, etc but then when you come to collect is goes 'urr urrrr, computer says no'.
Is there really no way of automating some of this then? I mean even a script that highlighted items in the project that are over the maximum path length would save a hell of a lot of manual searching and counting.
Thanks for your replies guys but.....AAAARRGGHH!!!!!

EIGRP on Cat3750

For EIGRP equal path loadbalancing, when i do a traceroute from one switch to another, there are some kind of loop happen. is this normal when we configure equal path loadbalancing?
This is my setup:
172.16.168.1---------C1---172.16.78.2---------172.16.78.1---C2
C1---172.16.78.6---------172.16.78.5---C2
C2 Config:
router eigrp 7008
passive-interface default
no passive-interface FastEthernet1/0/23
no passive-interface FastEthernet1/0/24
network 172.16.78.0 0.0.0.3
network 172.16.78.4 0.0.0.3
no auto-summary
C1 Config:
router eigrp 7008
passive-interface default
no passive-interface FastEthernet1/0/23
no passive-interface FastEthernet1/0/24
network 172.16.78.0 0.0.0.3
network 172.16.78.4 0.0.0.3
network 172.16.168.0 0.0.0.255
no auto-summary
C2 traceroute to C1:
Type escape sequence to abort.
Tracing the route to 172.16.168.1
1 172.16.78.6 0 msec
172.16.78.2 0 msec
172.16.78.6 0 msec
c2#traceroute 172.16.168.1
Type escape sequence to abort.
Tracing the route to 172.16.168.1
1 172.16.78.2 0 msec
172.16.78.6 0 msec
172.16.78.2 0 msec

This isn't a loop, it's normal traceroute functioning, or it should be. This is the result of trace packets being sent through different available paths. Note that the source is the local router, and, AFAIK, all locally sourced packets are still "process switched," so per packet load sharing would be the norm in this situation, rather than per flow or source/destination pair.
Russ.W

(High Ip input) on My router , I need to troubleshoot why CPU is high !!!!

(High Ip input) on My router , I need to troubleshoot why CPU is high !!!!
=================
i have a cisco router 7200 NPEG2 processor , worked as LNS for PPPOVPDN circuits (Router for ADSL clients)
i have "high ip input on my processor" and there is alot of differnce on my router between operations done by cef and operations done by router cpu
as an example , lets make show cpu process sorted
CPU utilization for five seconds: 67%/54%; one minute: 67%; five minutes: 68%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
87 10837056 46891299 231 6.31% 6.04% 6.32% 0 IP Input
122 4081972 38214106 106 2.47% 2.36% 2.46% 0 L2X Data Daemon
270 467844 2089101 223 0.79% 0.78% 0.79% 0 PPP Events
275 1862224 2102444 885 0.71% 0.73% 0.71% 0 SNMP ENGINE
112 627104 93588 6700 0.39% 0.36% 0.37% 0 CEF: IPv4 proces
273 854004 4207368 202 0.31% 0.26% 0.24% 0 IP SNMP
52 453256 12321 36787 0.31% 0.31% 0.31% 0 Compute load avg
258 295540 701580 421 0.23% 0.17% 0.15% 0 RADIUS
142 45792 14107303 3 0.23% 0.21% 0.21% 0 HQF Shaper Backg
78 86532 166975 518 0.23% 0.17% 0.13% 0 ACCT Periodic Pr
260 483164 248673 1942 0.23% 0.19% 0.24% 0 L2TP mgmt daemon
272 63980 1073491 59 0.15% 0.16% 0.15% 0 IPHC Admin
77 111560 184597 604 0.15% 0.08% 0.06% 0 AAA ACCT Proc
261 330572 217566 1519 0.15% 0.12% 0.15% 0 L2TUN Applicatio
274 450584 2102164 214 0.15% 0.15% 0.15% 0 PDU DISPATCHER
16 152352 1081873 140 0.07% 0.08% 0.19% 0 EnvMon
279 229040 27298 8390 0.07% 0.10% 0.11% 0 VTEMPLATE Backgr
40 23704 53593 442 0.07% 0.03% 0.02% 0 Net Background
95 4512 55604 81 0.07% 0.00% 0.00% 0 PPP Hooks
109 6844 62029 110 0.07% 0.00% 0.00% 0 IP Background
269 21384 1931910 11 0.07% 0.06% 0.07% 0 PPP manager
271 116 60672 1 0.07% 0.00% 0.00% 0 Multilink PPP
23 98400 321 306542 0.00% 0.07% 0.03% 0 AAA high-capacit
=====================
as we see above , we have high "IP Input" about differnece in cpu =67-54=13 % , which is high value process in software .
i follwed the article here :
http://www.cisco.com/c/en/us/support/docs/routers/7500-series-routers/41160-highcpu-ip-input.html
i check and found that my router is fine ,
no arp calls.
no routing loops.
no flapping links.
i checked that my router has cef enabled and no enormous routing protocol updates
i found that i have big differnce between hardware & software process on the router which is 13 %
but when the traffic is more and more , the cpu reach reach 93 % and begin to have drops.
i just want to ask , how can i debug the operations that are done on the cpu processor of the router ???
i mean that if i know that traffic , i can estimate and know the problem that increasing my cpu !!!
another question :
how to debug the packest that has a ttl exceeded 50 or ttl exceeded 100 ?????
i dont wan tto make debug ip packed , because i have a huge traffic and it will let my router hanged due to large debug !!
===============
righ now i will post my router config and some verification:
drvirus#sh running-config
Building configuration...
Current configuration : 12291 bytes
upgrade fpd auto
version 12.4
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no service dhcp
hostname drvirus
boot-start-marker
boot system flash disk2:c7200p-adventerprisek9-mz.124-24.T7.bin
boot system flash disk2:c7200p-adventerprisek9-mz.124-24.T8.bin
boot-end-marker
logging message-counter syslog
aaa new-model
aaa group server radius radiusservers
server-private 10..f.f.f auth-port 1812 acct-port 1813 key 7 weifuhjkefkjdbhfjkasbfjka
aaa authentication login adminstaff local
aaa authentication login sdm_vpn_xauth_ml_1 group radius
aaa authentication login ahmad local
aaa authentication ppp vpdn group radiusservers local
aaa authentication ppp drvirus local
aaa authentication ppp vpdn1 local group radiusservers
aaa authentication ppp ddd none
aaa authentication ppp dddd none
aaa authentication ppp anyok none
aaa authorization network default group radius local
aaa authorization network vpdn group radiusservers local
aaa authorization network sdm_vpn_group_ml_1 local
aaa authorization network drvirus local
aaa authorization network vpdn1 local group radiusservers
aaa authorization network ddd none
aaa authorization network anyok none
aaa accounting delay-start
aaa accounting update newinfo periodic 10
aaa accounting network vpdn
action-type start-stop
broadcast
group radiusservers
aaa server radius dynamic-author
client xxxxxxxx
client 10.xxxxxx
client 10.xxxxxxxxx
server-key 7 dihcbsdjkbvcsdhmbvhsdbvsdhmbvsd
auth-type any
aaa session-id common
clock timezone GMT+3 3
no ip subnet-zero
no ip source-route
no ip gratuitous-arps
ip cef
no ip bootp server
ip domain name drvirus
ip name-server x.x.x.x.x
ip name-server 8.8.8.8
login block-for 180 attempts 3 within 60
login quiet-mode access-class telnet
login on-failure log
login on-success log
no ipv6 cef
ipv6 dhcp pool vvv
prefix-delegation pool version6
address prefix 3333::/64
dns-server 4444::1
multilink bundle-name authenticated
vpdn enable
vpdn logging
vpdn logging local
vpdn history failure table-size 50
vpdn-group eeeeeeeeeeee
accept-dialin
protocol l2tp
virtual-template 1
terminate-from hostname qqqqqq
local name rrrrrrr
lcp renegotiation on-mismatch
l2tp tunnel password 7ekfhjjeklfnlenfl
l2tp tunnel timeout no-session 60
ip mtu adjust
username drvirus@!34`!512&$8#$232!^@^FGsdGD privilege 0 password 7 000sdkjhvsdkjvnah94313085g2355091407458E32425D
interface Loopback1
ip address ttttttt 255.255.255.255
interface GigabitEthernet0/1
description ttttttt
ip address 10.60.60.2 255.255.255.0 secondary
ip address 10.200.200.200 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
load-interval 30
duplex auto
speed auto
media-type rj45
negotiation auto
interface GigabitEthernet0/1.4
encapsulation dot1Q 4
ip address ttttttttt 255.255.255.224
interface GigabitEthernet0/1.14
encapsulation dot1Q 14
ip address 192.168.50.3 255.255.255.0
interface FastEthernet0/2
no ip address
shutdown
duplex auto
speed auto
interface GigabitEthernet0/2
ip address 10.160.150.2 255.255.255.0
duplex auto
speed auto
media-type rj45
negotiation auto
interface GigabitEthernet0/3
description rrrrrrr
ip address xxxxxxx 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
load-interval 30
duplex full
speed 1000
media-type sfp
negotiation auto
interface Virtual-Template1
ip unnumbered Loopback1
ip tcp adjust-mss 1412
no logging event link-status
peer default ip address pool xxxxx xxxxxx
ppp mtu adaptive
ppp authentication pap vpdn1
ppp authorization vpdn1
ppp accounting vpdn
router eigrp 2
redistribute connected metric 1 2 1 2 1
passive-interface default
no passive-interface GigabitEthernet0/1
network 10.200.200.200 0.0.0.0
no auto-summary
eigrp router-id 2.2.2.2
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 10.200.200.2
ip route dddddddddd 255.255.255.0 fffffff
ip route ddddddddd 255.255.255.0 ffffff
no ip http server
no ip http secure-server
ip radius source-interface GigabitEthernet0/2
radius-server attribute nas-port format d
radius-server configure-nas
radius-server host ddddddddddd auth-port 1812 acct-port 1813 key 7 dddddddddd
radius-server retransmit 0
radius-server key 7 dddddddddddddddddd
radius-server vsa send cisco-nas-port
radius-server vsa send accounting
radius-server vsa send authentication
control-plane
drvirus#sh ip traffic
IP statistics:
Rcvd: 92454889 total, 5908020 local destination
0 format errors, 94 checksum errors, 3789577 bad hop count
0 unknown protocol, 23360 not a gateway
0 security failures, 0 bad options, 3730347 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 3730347 alert, 0 cipso, 0 ump
0 other
Frags: 1409002 reassembled, 485 timeouts, 0 couldn't reassemble
4542214 fragmented, 9089659 fragments, 2659413 couldn't fragment
Bcast: 6024 received, 0 sent
Mcast: 56503 received, 31033 sent
Sent: 15839581 generated, 2407203241 forwarded
Drop: 23 encapsulation failed, 0 unresolved, 0 no adjacency
0 no route, 0 unicast RPF, 0 forced drop
0 options denied
Drop: 0 packets with source IP address zero
Drop: 0 packets with internal loop back IP address
0 physical broadcast
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 4 unreachable
140579 echo, 33742 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 timestamp replies, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
0 time exceeded, 0 info replies
Sent: 0 redirects, 3530 unreachable, 33744 echo, 140579 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp, 0 timestamp replies
0 info reply, 46795 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
TCP statistics:
Rcvd: 19285 total, 0 checksum errors, 7 no port
Sent: 39402 total
BGP statistics:
Rcvd: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh, 0 unrecognized
Sent: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh
IP-EIGRP statistics:
Rcvd: 39154 total
Sent: 39275 total
PIMv2 statistics: Sent/Received
Total: 0/0, 0 checksum errors, 0 format errors
Registers: 0/0 (0 non-rp, 0 non-sm-group), Register Stops: 0/0, Hellos: 0/0
Join/Prunes: 0/0, Asserts: 0/0, grafts: 0/0
Bootstraps: 0/0, Candidate_RP_Advertisements: 0/0
Queue drops: 0
State-Refresh: 0/0
IGMP statistics: Sent/Received
Total: 0/0, Format errors: 0/0, Checksum errors: 0/0
Host Queries: 0/0, Host Reports: 0/0, Host Leaves: 0/0
DVMRP: 0/0, PIM: 0/0
Queue drops: 0
UDP statistics:
Rcvd: 5632168 total, 0 checksum errors, 9605 no port
Sent: 15536481 total, 0 forwarded broadcasts
OSPF statistics:
Rcvd: 0 total, 0 checksum errors
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
Sent: 0 total
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
ARP statistics:
Rcvd: 36012 requests, 25 replies, 0 reverse, 0 other
Sent: 3590 requests, 1883 replies (41 proxy), 0 reverse
Drop due to input queue full: 0
drvirus#sh interfaces switching
GigabitEthernet0/1 ffff
Throttle count 0
Drops RP 29334 SP 0
SPD Flushes Fast 183378 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 196591 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 50222652 1410586379 38933488 2377282438
Cache misses 0 - - -
Fast 2501299905 502401799 1732463443 1178236678
Auton/SSE 0 0 0 0
Protocol DEC MOP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 104 8008
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol ARP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 36178 2170680 3643 233084
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol CDP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 1039 385469 2067 772027
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol Other
Switching path Pkts In Chars In Pkts Out Chars Out
Process 2266 138297 6179 370740
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
Interface FastEthernet0/2 is disabled
GigabitEthernet0/2
Throttle count 0
Drops RP 0 SP 0
SPD Flushes Fast 785 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 1900 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 382927 34296776 382540 106683985
Cache misses 0 - - -
Fast 198 31569 0 0
Auton/SSE 0 0 0 0
Protocol DEC MOP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 104 8008
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol ARP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 1900 114000 1813 108780
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol CDP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 1030 378010 1031 378377
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol Other
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 6180 370800
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
GigabitEthernet0/3 drvirus
Throttle count 0
Drops RP 15 SP 0
SPD Flushes Fast 22435 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 194236 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 40507058 2970006619 56462488 1872816742
Cache misses 0 - - -
Fast 1758170357 386468928 2449949282 3706868609
Auton/SSE 0 0 0 0
Protocol DEC MOP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 105 8085
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol ARP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 5 300 7 420
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol CDP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 1034 379478
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol Other
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 6180 370800
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
drvirus#sh ip route summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 1 1644 105280 250040
static 3 0 192 456
eigrp 2 0 0 0 0
internal 5 5860
Total 9 1644 105472 256356
Removing Queue Size 0
drvirus#sh ip route summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 1 1645 105344 250192
static 3 0 192 456
eigrp 2 0 0 0 0
internal 5 5860
Total 9 1645 105536 256508
Removing Queue Size 0
drvirus#sh ip route summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 1 1645 105344 250192
static 3 0 192 456
eigrp 2 0 0 0 0
internal 5 5860
Total 9 1645 105536 256508
Removing Queue Size 0
drvirus#sh ip route summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 1 1645 105344 250192
static 3 0 192 456
eigrp 2 0 0 0 0
internal 5 5860
Total 9 1645 105536 256508
Removing Queue Size 0
drvirus#
ANy help ??????!!!!!

can some one determin if :
122 9166144 120227216 76 3.30% 2.81% 2.42% 0 L2X Data Daemon
has a relation to my high cpu
her is agian my cpu process :
drvirus#sh processes cpu sorted
CPU utilization for five seconds: 69%/51%; one minute: 62%; five minutes: 59%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
87 22165548 147317354 150 7.60% 6.54% 5.74% 0 IP Input
16 682988 2637213 258 3.61% 0.70% 0.37% 0 EnvMon
122 9166144 120227216 76 3.30% 2.81% 2.42% 0 L2X Data Daemon
270 484700 4987094 97 0.76% 0.84% 0.86% 0 PPP Events
260 746640 483367 1544 0.30% 0.51% 0.51% 0 L2TP mgmt daemon
112 1082540 228491 4737 0.30% 0.31% 0.31% 0 CEF: IPv4 proces
190 596 755 789 0.30% 0.02% 0.00% 2 SSH Process
279 461184 78909 5844 0.30% 0.39% 0.45% 0 VTEMPLATE Backgr
52 954592 29823 32008 0.30% 0.31% 0.31% 0 Compute load avg
272 53744 2782461 19 0.23% 0.17% 0.16% 0 IPHC Admin
261 513524 428266 1199 0.23% 0.38% 0.37% 0 L2TUN Applicatio
142 31888 35627222 0 0.23% 0.19% 0.20% 0 HQF Shaper Backg
258 570384 1602872 355 0.15% 0.18% 0.17% 0 RADIUS
78 43280 392561 110 0.15% 0.10% 0.08% 0 ACCT Periodic Pr
281 52340 385568 135 0.07% 0.08% 0.09% 0 IP-EIGRP: PDM
40 37300 138153 269 0.07% 0.09% 0.10% 0 Net Background
77 145860 443602 328 0.07% 0.06% 0.07% 0 AAA ACCT Proc
110 31060 53876 576 0.07% 0.03% 0.02% 0 IP RIB Update
45 11868 52400 226 0.07% 0.01% 0.00% 0 IF-MGR control p
115 20164 103667 194 0.07% 0.02% 0.00% 0 PPP IPCP
102 181600 489310 371 0.07% 0.14% 0.15% 0 SSM connection m
143 3148 1461382 2 0.07% 0.01% 0.00% 0 RBSCP Background
80 19488 22128 880 0.07% 0.02% 0.00% 0 CDP Protocol
23 189412 10771 17585 0.00% 0.15% 0.04% 0 AAA high-capacit
22 0 1 0 0.00% 0.00% 0.00% 0 CEF MIB API
21 0 2 0 0.00% 0.00% 0.00% 0 ATM Idle Timer
20 376 153594 2 0.00% 0.00% 0.00% 0 ARP Background
24 0 2 0 0.00% 0.00% 0.00% 0 AAA_SERVER_DEADT
25 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager
26 1376 26590 51 0.00% 0.00% 0.00% 0 DDR Timers
31 4 30 133 0.00% 0.00% 0.00% 0 EEM ED Syslog
27 0 5 0 0.00% 0.00% 0.00% 0 Entity MIB API
33 324 147392 2 0.00% 0.00% 0.00% 0 GraphIt
34 0 2 0 0.00% 0.00% 0.00% 0 Dialer event
28 0 2 0 0.00% 0.00% 0.00% 0 Serial Backgroun
36 0 2 0 0.00% 0.00% 0.00% 0 XML Proxy Client

RIP V1

Hello im having a very basic topolgy where 2 routers directly connected and running RIP V1
Lo1----R1-155.10.2.1/24--------------155.10.2.2/24--R2
Lo1 is 155.10.3.1/32
Now what i know about RIP V1 is that it's Classful routing protocol so in this case R1 will advertise Lo1 to R2 without any subnet mask and when R2 recieve this it should either assign it as /24 since its in the same major network of the directly connected or /16 but in my case i can see 155.10.3.1/32 on R2 routing table how is this possible ???
R1#show run interface lo1
Building configuration...
Current configuration : 66 bytes
interface Loopback1
ip address 155.10.3.1 255.255.255.255
end
R1#show ip protocols
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 19 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 1, receive any version
    Interface             Send Recv Triggered RIP Key-chain
    FastEthernet0/0       1     1 2
    Loopback1             1     1 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
    155.10.0.0
Routing Information Sources:
    Gateway         Distance      Last Update
    155.10.2.2           120      00:00:20
Distance: (default is 120)
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
     155.10.0.0/16 is variably subnetted, 2 subnets, 2 masks
R       155.10.3.1/32 [120/1] via 155.10.2.1, 00:00:05, FastEthernet0/0
C       155.10.2.0/24 is directly connected, FastEthernet0/0
C    192.168.23.0/24 is directly connected, FastEthernet1/0
R2#show ip protocols
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 26 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 1, receive any version
    Interface             Send Recv Triggered RIP Key-chain
    FastEthernet0/0       1     1 2
    FastEthernet1/0       1     1 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
    192.168.12.0
    0.0.0.0
Routing Information Sources:
    Gateway         Distance      Last Update
    192.168.12.1         120      01:03:37
    155.10.2.1           120      00:00:19
Distance: (default is 120)

Hi,
RIPv1 will not advertise a subnet out the same major network if the mask is different but there is one exception and this is host routes(if routers support it and Cisco router do).
when receiving the route R2 looks for the host bit set in the host portion of the update and so applies the host mask of /32.
Regards
Alain
Don't forget to rate helpful posts.

IS-IS not working on ASR903.

Hey you all
I have a very strange problem regarding IS-IS routing process on an ASR903 router, that I hope someone can help me with. I am trying to get IS-IS up and running between an ASR903 router and a ME3600X switch. Between the two boxes is a service provider VPLS network. We have IS-IS running on other similar links between this ASR903 and another ME3600X switch also with a VPLS network between. We are running MPLS in our backbone and uses IS-IS as the underlay IGP. It looks like the two IS-IS routers can’t see each other. When I do a debug of isis adj-packets can I see that the ME3600X switch is sending ISIS hellos packets out but does not receive any in. The same debug on the ASR903 do not give anything. It seems like it not even sending ISIS hellos. Logging level debugging is on. The two boxes can ping each other without any problems.
I have tried a couple of things when troubleshooting this problem. I have tried setting the network type to point-to-point, setting the clns mtu, disabled hello padding but nothing worked. I have also tried running OSPF over the link, and it worked without any problems. Then I tried to make a one-hop gre tunnel between them, and then run IS-IS over the gre tunnel and that also worked. When I issue the “show clns interface” command can I see that the “Next IS-IS LAN Level-2 Hello in” is always 0 on the ASR903 router on that interface. On the others interfaces that is running IS-IS the counter is changing. The same on the interface on the ME3600X switch.The software version on the ASR903 is for the IOS-XE is 3.13.1 and the IOS is 15.4(3).S1.
Do you have any idea’s to what the problem could be?
Thanks
Michael H.

Hey Vassilii
Here are the show commands :-)
sh run int gi 0/2/1
interface GigabitEthernet0/2/1
description INX2-ABC 500Mbps
ip address 10.79.171.142 255.255.255.252
ip router isis
negotiation auto
mpls ip
bfd interval 100 min_rx 100 multiplier 3
isis circuit-type level-2-only
isis network point-to-point
isis metric 2000
no isis hello padding
isis bfd disable
end
sh run | sec router isis
router isis
net 01.f84f.5783.1a00.00
is-type level-2-only
metric-style wide
log-adjacency-changes
bfd all-interfaces
mpls ldp sync
sh clns
Global CLNS Information:
9 Interfaces Enabled for CLNS
Configuration Timer: 60, Default Holding Timer: 300, Packet Lifetime 64
ERPDU's requested on locally generated packets
Running IS-IS in IP-only mode (CLNS forwarding not allowed)
NET: 01.f84f.5783.1a00.00
sh clns interface gi 0/2/1
GigabitEthernet0/2/1 is up, line protocol is up
Checksums enabled, MTU 1497, Encapsulation SAP
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching disabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 37 seconds
Routing Protocol: IS-IS
    Circuit Type: level-2
    Interface number 0x8, local circuit ID 0x103
    Level-2 Metric: 2000, Priority: 64, Circuit ID: ASR903-AAL01.03
    Level-2 IPv6 Metric: 10
    Number of active level-2 adjacencies: 0
    Next IS-IS Hello in 0 seconds
    No hello padding
    if state DOWN
sh ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is "isis"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: isis
Address Summarization:
    None
Maximum path: 4
Routing for Networks:
    Loopback0
    Loopback1
    BDI602
    BDI3001
    BDI3002
    BDI3100
    BDI1356
    GigabitEthernet0/2/1
    BDI1052
Routing Information Sources:
    Gateway         Distance      Last Update
    100.110.0.19         115      00:02:42
    100.110.0.22         115      00:02:42
    100.110.0.20         115      00:02:42
    100.110.0.21         115      00:02:42
    10.79.144.17         115      00:02:42
    10.79.144.16         115      00:02:42
    10.79.144.15         115      00:02:42
    10.79.144.10         115      00:02:42
Distance: (default is 115)
ping 10.79.171.141
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.79.171.141, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/6/8 ms

EIGRP Maximum-Paths

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