BGP not advertised
I have two routers with BGP configured:
C2921:
router bgp 65014
bgp router-id 192.168.54.190
bgp log-neighbor-change
neighbor 192.168.54.150 remote-as 65011
neighbor 192.168.54.150 description Loud backup
neighbor 192.168.54.150 route-map Backup out
C1841:
router bgp 65011
no synchronization
bgp router-id 10.10.35.1
bgp log-neighbor-changes
neighbor 192.168.54.149 remote-as 65014
neighbor 192.168.54.149 description Cubus backup
neighbor 192.168.54.149 prefix-list Loudenia out
neighbor 192.168.54.149 route-map Backup out
ip prefix-list Loudenia seq 5 permit 10.10.35.0/24 le 32
ip prefix-list Loudenia seq 10 permit 192.168.111.0/24 le 32
ip prefix-list Loudenia seq 15 permit 10.25.15.0/24 le 32
ip prefix-list Loudenia seq 20 permit 192.168.44.0/24 le 32
ip prefix-list Loudenia seq 25 permit 192.168.45.0/24 le 32
ip prefix-list Loudenia seq 30 permit 192.168.46.0/28 le 32
ip prefix-list Loudenia seq 35 permit 192.168.49.196/30 le 32
ip prefix-list Loudenia seq 40 permit 192.168.49.225/32
ip prefix-list Loudenia seq 45 permit 192.168.49.229/32
route-map Backup permit 10
set as-path prepend 65011 65011
I have added:
ip prefix-list Loudenia seq 50 permit 192.168.48.225/32
made:
clear ip bgp 192.168.54.149 soft
but nothing changed route to 192.168.48.225 not advertised:
C1841-Loudenia#show ip bgp neighbors 192.168.54.149 advertised-routes
BGP table version is 137998, local router ID is 10.10.35.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 10.10.35.0/24 0.0.0.0 0 32768 i
*> 10.25.15.0/24 192.168.111.10 0 32768 i
*> 192.168.44.0 192.168.49.26 0 65005 i
*> 192.168.45.0 192.168.49.26 0 65005 i
*> 192.168.46.0/28 192.168.49.26 0 65005 i
*> 192.168.49.196/30
192.168.49.26 0 65005 i
*> 192.168.49.225/32
192.168.49.26 0 0 65005 i
*> 192.168.49.229/32
192.168.49.26 0 65005 i
*> 192.168.111.0 0.0.0.0 0 32768 i
C1841 knows 192.168.48.225/32 via bgp
* 192.168.48.225/32
192.168.49.58 0 65005 65005 65005 65006 65013 i
*> 192.168.49.26 0 65005 65006 65013 i
I will be grateful for your advice
That is you mean?
C1841 knows 192.168.48.225/32 via bgp
* 192.168.48.225/32
192.168.49.58 0 65005 65005 65005 65006 65013 i
*> 192.168.49.26 0 65005 65006 65013 i
Similar Messages
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I have two routers with BGP configured:
C2921:
router bgp 65014
bgp router-id 192.168.54.190
bgp log-neighbor-change
neighbor 192.168.54.150 remote-as 65011
neighbor 192.168.54.150 description Loud backup
neighbor 192.168.54.150 route-map Backup out
C1841:
router bgp 65011
no synchronization
bgp router-id 10.10.35.1
bgp log-neighbor-changes
neighbor 192.168.54.149 remote-as 65014
neighbor 192.168.54.149 description Cubus backup
neighbor 192.168.54.149 prefix-list Loudenia out
neighbor 192.168.54.149 route-map Backup out
ip prefix-list Loudenia seq 5 permit 10.10.35.0/24 le 32
ip prefix-list Loudenia seq 10 permit 192.168.111.0/24 le 32
ip prefix-list Loudenia seq 15 permit 10.25.15.0/24 le 32
ip prefix-list Loudenia seq 20 permit 192.168.44.0/24 le 32
ip prefix-list Loudenia seq 25 permit 192.168.45.0/24 le 32
ip prefix-list Loudenia seq 30 permit 192.168.46.0/28 le 32
ip prefix-list Loudenia seq 35 permit 192.168.49.196/30 le 32
ip prefix-list Loudenia seq 40 permit 192.168.49.225/32
ip prefix-list Loudenia seq 45 permit 192.168.49.229/32
route-map Backup permit 10
set as-path prepend 65011 65011
I have added:
ip prefix-list Loudenia seq 50 permit 192.168.48.225/32
made:
clear ip bgp 192.168.54.149 soft
but nothing changed route to 192.168.48.225 not advertised:
C1841-Loudenia#show ip bgp neighbors 192.168.54.149 advertised-routes
BGP table version is 137998, local router ID is 10.10.35.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 10.10.35.0/24 0.0.0.0 0 32768 i
*> 10.25.15.0/24 192.168.111.10 0 32768 i
*> 192.168.44.0 192.168.49.26 0 65005 i
*> 192.168.45.0 192.168.49.26 0 65005 i
*> 192.168.46.0/28 192.168.49.26 0 65005 i
*> 192.168.49.196/30
192.168.49.26 0 65005 i
*> 192.168.49.225/32
192.168.49.26 0 0 65005 i
*> 192.168.49.229/32
192.168.49.26 0 65005 i
*> 192.168.111.0 0.0.0.0 0 32768 i
C1841 knows 192.168.48.225/32 via bgp
* 192.168.48.225/32
192.168.49.58 0 65005 65005 65005 65006 65013 i
*> 192.168.49.26 0 65005 65006 65013 i
I will be grateful for your adviceHello, thanks for reply.
The route is on the route table
C1841-Loudenia#show ip route | i 192.168.48.225
B 192.168.48.225/32 [20/0] via 192.168.49.26, 3w6d
C1841-Loudenia#show ip bgp | i 192.168.48.225
* 192.168.48.225/32
192.168.49.58 0 65005 65005 65005 65006 65013 i
*> 192.168.49.26 0 65005 65006 65013 i -
BGP: Customer network announcing error (not advertised)
Hi to all.
Our company - is small business ISP. We have two BGP upstreams, and some customers who connect with us via BGP. Day ago, our customer opened a case that we don't announce his network to the "global network". I can see, that he announce me his network, and BGP add this prefix to the routing table. But when i open prefix detail - i see that prefix not advertised to any peer.
Here is sh run :
router bgp xxx
bgp router-id xx.xx.xx.xx
bgp log-neighbor-changes
neighbor xx.xx.xx.xx remote-as xxxx
neighbor xx.xx.xx.xx description Customer
neighbor yy.yy.yy.yy remote-as yyyy
neighbor yy.yy.yy.yy description Uplink
address-family ipv4
neighbor xx.xx.xx.xx activate
neighbor xx.xx.xx.xx default-originate
neighbor xx.xx.xx.xx soft-reconfiguration inbound
neighbor xx.xx.xx.xx prefix-list DEFAULT out
neighbor xx.xx.xx.xx prefix-list Deny-Default in
neighbor yy.yy.yy.yy activate
neighbor yy.yy.yy.yy prefix-list BizTel out
neighbor yy.yy.yy.yy filter-list 1 out
exit-address-family
ip as-path access-list 1 permit ^$
ip as-path access-list 1 permit ^xxxx$
ip prefix-list DEFAULT seq 5 permit 0.0.0.0/0
ip prefix-list Deny-Default seq 10 deny 0.0.0.0/32
ip prefix-list Deny-Default seq 15 permit 0.0.0.0/0 le 32
sh ip bgp neighbors xx.xx.xx.xx received-routes:
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 xx.xx.xx.xx 0 xxxx xxxx yyyy i
*> zz.zz.zz.zz/24 xx.xx.xx.xx 0 0 xxxx xxxx i
sh ip bgp neigh xx.xx.xx.xx adv routes:
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 xx.xx.xx.xx 0 xxxx xxxx yyyy i
sh ip bgp zz.zz.zz.zz /24:
BGP routing table entry for zz.zz.zz.zz/24, version 6503140
Paths: (3 available, best #1, table default)
Not advertised to any peer
xxxx xxxx, (received & used)
xx.xx.xx.xx from xx.xx.xx.xx (cc.cc.cc.cc)
Origin IGP, metric 0, localpref 100, valid, external, best
Can somebody help me with this question?The outputs are very confusing ie.
sh ip bgp neighbors xx.xx.xx.xx received-routes:
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 xx.xx.xx.xx 0 xxxx xxxx yyyy i
*> zz.zz.zz.zz/24 xx.xx.xx.xx 0 0 xxxx xxxx i
presumably these are the routes received from the customer ? If so -
1) why are you receiving a default from the customer with yyyy in the AS PATH ?
2) why are there two instances of xxxx in AS PATH for both routes in the AS PATH ?
also -
sh ip bgp neigh xx.xx.xx.xx adv routes:
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 xx.xx.xx.xx 0 xxxx xxxx yyyy i
if you are looking at routes advertised upstream why are you looking at advertised routes to the customer ?
It is difficult to say what is happening because you have blanked out all the information.
Finally you have -
neighbor yy.yy.yy.yy prefix-list BizTel out
but there is no such prefix list in the config you posted
Can you clarify by answering the above and perhaps explain how this is all setup ie. is x.x.x.x the customer and y.y.y.y your upstream provider.
The more information you can give the more we can help.
Jon -
Show ip bgp not showing all BGP Paths
Hi,
We've setup BGP as shown in the diagram.
Now Router Router A and B are peers of each other. Router A peers with ISP A and Router B peers with Router B.
The issue we have is that Router B knows how to get to router C via eBGP connection to ISP B router or via ISP A, which is advertised via iBGP from Router A.
But ....
Router A only shows in "show ip bgp" about network Router C via ISP A.
If I do a soft clear of bgp information on Router A I then see both paths to Router C via ISP A or ISPB, but once BGP is converged im only seeing best path via ISP A. Can anyone explain why the path via ISP B is not shown on Router A? we are using local preference in a route map to say prefer router A over Router B to exit the network to get to router C.
Synchronisation is disabled. Router A and B are running the same code of IOS and also have similiar configs.
My assumption is that becuase of the local preference Router A stops listing path via Router B in the BGP table. This thought doesnt make complete sense to me ???? In my test lab I always see all paths to exit the AS.
router#show ip bgp 192.168.100.0
BGP routing table entry for 192.168.100.0/22, version 40
Paths: (2 available, best #2, table default)
Not advertised to any peer
65530 64514, (aggregated by 64514 10.x.x.246)
10.x.x.30 from 10.x.x.30 (202.x.x.x)
Origin IGP, localpref 80, valid, external, atomic-aggregate
65530 64514, (aggregated by 64514 10.202.103.246)
10.x.x.22 from 10.x.x.78 (10.x.x.78)
Origin IGP, metric 0, localpref 120, valid, internal, atomic-aggregate, best
Thanks
BI've just lab'd this and it is the local preference.
If I remove my route map I see all paths as expected. Once I apply my route-map which matches ips and assigns the local preference then I see the shown behaviour.
Note to self - lab first before posting on cisco support forum -
Sh bgp: received & advertised routes
Dear all:
In reference at the commands:
- sh bgp neighbor A.B.C.D
- sh bgp neighbor A.B.C.D received routes
- sh bgp neighbor A.B.C.D advertised-routes
For example:
ROUTER#sh bgp neighbor A.B.C.D
Policy for incoming advertisements is PEERING-IN
Policy for outgoing advertisements is PEERING-OUT
1 accepted prefixes, 0 are bestpaths
Cumulative no. of prefixes denied: 8974070.
No policy: 0, Failed RT match: 0
By ORF policy: 0, By policy: 8974070
Prefix advertised 77, suppressed 0, withdrawn 2
In output this command we have # Prefixes:
1 accepted & 0 are bestpaths (after policy)
advertised 77, suppressed 0, withdrawn 2 (after policy)
8974070 prefix are deny
But, when you execute the next command:
ROUTER#sh bgp neighbor A.B.C.D received routes
Processed 503233 prefixes, 503233 paths
In output this command we have# Prefixes = 503233
And when you execute the next command:
ROUTER#sh bgp neighbor A.B.C.D advertised-routes
Processed 73 prefixes, 73 paths
In output this command we have:
73 prefixes advertised at peer
The question is:
What's the different between counter 8974070 and 503233 (prefix received before apply policy)?
What's the different between counter 77 (or 75 = 77 - 2 withdrawn) and 73 (prefix advertised before apply policy)?
Exist only one command that help at see total prefix received/advertised (different a sh bgp neighbor A.B.C.D received routes) ?
Thanks.Not really because OSPF does not advertise routes it sends LSAs to it's peers.
So you need to look at the OSPF database ie. -
"sh ip ospf database"
which will show you all the LSAs the router is aware of.
In terms of all the LSAs the router has received it will show all of those but it will also show you LSAs that were generated by the router itself although the advertising router IP will point to that being the case.
In terms of all the LSAs the router advertises again it depends on the area and how that has been configured.
So for example an ABR might well have external LSAs (which aren't tied to any area in the OSPF database) but that doesn't necessarily mean it is advertising them to peers within an area as it could have been configured not to.
So it gives you a good idea but you need to also work out a few things for yourself as well.
Jon -
I am confused about which routes will a bgp speaker advertise to its bgp neighbors?
Will it advertise the bgp routes in routing table OR will it advertise the best routes from the bgp table (but not necessarily in routing table)?Thanks!!
I thought so, but in Troubleshooting IP Routing Protocols book by Cisco press, it is stated that bgp router will advertise its routes from routing table, so wanted to confirm that that was indeed wrong.
On page 668, this is what is written:
One rule that BGP follows when advertising prefixes to other neighbors is that the prefix being advertised must
exist in the routing table of the advertising router. -
BGP not communicating with 4th Hop
Hi All,
PFA...I'm beginner to BGP & designed network like in attachment.
I'm unable to ping R5 from R1.
R1:
interface Serial1/0
ip address 20.0.0.1 255.255.255.0
serial restart-delay 0
router bgp 200
no synchronization
bgp log-neighbor-changes
network 20.0.0.0 mask 255.255.255.0
network 20.0.2.0 mask 255.255.255.0
network 20.0.2.0
network 20.0.0.0 mask 20.0.0.0
neighbor 20.0.0.2 remote-as 400
neighbor 20.0.0.2 ebgp-multihop 255
neighbor 20.0.2.2 remote-as 400
neighbor 20.0.2.2 ebgp-multihop 255
=====================================
R2:
interface Serial1/0
ip address 30.0.0.1 255.255.255.0
serial restart-delay 0
router bgp 300
bgp log-neighbor-changes
neighbor 30.0.0.2 remote-as 400
neighbor 30.0.0.2 ebgp-multihop 255
=====================================
R3:
interface FastEthernet0/0
ip address 40.0.0.1 255.255.255.0
duplex auto
speed auto
interface Serial1/0
ip address 20.0.0.2 255.255.255.0
serial restart-delay 0
interface Serial1/1
ip address 30.0.0.2 255.255.255.0
serial restart-delay 0
interface Serial1/2
ip address 20.0.1.1 255.255.255.0
serial restart-delay 0
interface Serial1/3
ip address 30.0.1.1 255.255.255.0
serial restart-delay 0
router bgp 400
no synchronization
bgp log-neighbor-changes
network 20.0.0.0 mask 255.255.255.0
network 20.0.1.0 mask 255.255.255.0
network 30.0.0.0 mask 255.255.255.0
network 30.0.1.0 mask 255.255.255.0
network 30.0.2.0 mask 255.255.255.0
network 40.0.0.0 mask 255.255.255.0
neighbor 20.0.0.1 remote-as 200
neighbor 20.0.0.1 ebgp-multihop 255
neighbor 20.0.1.2 remote-as 400
neighbor 20.0.1.2 ebgp-multihop 255
neighbor 30.0.0.1 remote-as 300
neighbor 30.0.0.1 ebgp-multihop 255
neighbor 30.0.1.2 remote-as 400
neighbor 40.0.0.2 remote-as 400
======================================
R4:
interface Serial1/0
ip address 20.0.1.2 255.255.255.0
serial restart-delay 0
interface Serial1/1
ip address 20.0.2.1 255.255.255.0
serial restart-delay 0
interface Serial1/2
ip address 20.0.3.1 255.255.255.0
serial restart-delay 0
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
router bgp 400
no synchronization
bgp log-neighbor-changes
network 20.0.0.0 mask 255.255.255.0
network 20.0.1.0 mask 255.255.255.0
network 20.0.2.0 mask 255.255.255.0
network 20.0.3.0 mask 255.255.255.0
neighbor 20.0.0.1 remote-as 200
neighbor 20.0.0.1 ebgp-multihop 2
neighbor 20.0.1.1 remote-as 400
neighbor 20.0.1.1 ebgp-multihop 255
neighbor 20.0.1.1 next-hop-self
neighbor 20.0.2.2 remote-as 400
neighbor 20.0.2.2 ebgp-multihop 255
neighbor 20.0.3.2 remote-as 400
neighbor 20.0.3.2 ebgp-multihop 255
======================================
R5:
interface Serial1/0
ip address 20.0.2.2 255.255.255.0
serial restart-delay 0
interface Serial1/1
ip address 30.0.2.2 255.255.255.0
serial restart-delay 0
router bgp 400
no synchronization
bgp log-neighbor-changes
network 20.0.0.0 mask 255.255.255.0
network 20.0.2.0 mask 255.255.255.0
network 30.0.0.0 mask 255.255.255.0
network 30.0.2.0 mask 255.255.255.0
network 40.0.0.0 mask 255.255.255.0
neighbor 20.0.0.1 remote-as 200
neighbor 20.0.0.1 ebgp-multihop 255
neighbor 20.0.2.1 remote-as 400
neighbor 20.0.2.1 ebgp-multihop 255
neighbor 30.0.2.1 remote-as 400
neighbor 30.0.2.1 ebgp-multihop 255
======================================
R6:
interface Serial1/1
ip address 30.0.1.2 255.255.255.0
serial restart-delay 0
interface Serial1/2
ip address 20.0.3.2 255.255.255.0
serial restart-delay 0
interface Serial1/3
ip address 30.0.3.1 255.255.255.0
serial restart-delay 0
router bgp 400
no synchronization
bgp log-neighbor-changes
network 20.0.3.0 mask 255.255.255.0
network 30.0.0.0 mask 255.255.255.0
network 30.0.1.0 mask 255.255.255.0
network 30.0.2.0 mask 255.255.255.0
network 30.0.3.0 mask 255.255.255.0
neighbor 20.0.3.1 remote-as 400
neighbor 20.0.3.1 ebgp-multihop 255
neighbor 30.0.0.1 remote-as 300
neighbor 30.0.0.1 ebgp-multihop 255
neighbor 30.0.1.1 remote-as 400
neighbor 30.0.1.1 ebgp-multihop 255
neighbor 30.0.2.2 remote-as 400
neighbor 30.0.2.2 ebgp-multihop 255
neighbor 30.0.3.2 remote-as 400
neighbor 30.0.3.2 ebgp-multihop 255
=====================================
R7:
interface FastEthernet0/0
ip address 40.0.0.2 255.255.255.0
duplex auto
speed auto
interface Serial1/3
ip address 30.0.3.2 255.255.255.0
serial restart-delay 0
router bgp 400
no synchronization
bgp log-neighbor-changes
network 30.0.3.0 mask 255.255.255.0
network 40.0.0.0 mask 255.255.255.0
neighbor 30.0.3.1 remote-as 400
neighbor 40.0.0.1 remote-as 400
=====================================
Thanks.,
Prakalathan.kHi,
there is one general BGP rule:
A BGP router will not advertise any prefix received via iBGP to another iBGP neighbor.
So neither R4 nor R6 will not advertise your R1 prefix received via iBGP to from R3 to another iBGP neighbor R5.
There are several basic possibilities to fix the issue:
a) Configure iBGP full-mesh.
I.e., add a iBGP session between R5 and R3.
b) Try to configure route-reflector.
c) Or think about confederations.
IMHO, a) is the easiest way.
Best regards,
Milan -
What needs to be done to get the my primary network to not advertise?
I've configured my Airport Extreme and Express (for extra range) and created two networks. The idea being one would be private and one guest (both require a security key). I don't mind my guest advertising. I'd like my private network to not advertise. I'm about to add a second Airport Express as I need the extra range. Since I'm going to need to configure that anyway, now would be the time to address the advertising issue around my private network - any suggestions?
thanksI can understand why some Apple users want to "hide" their networks since Apple's default settings include the name of the user. For example.....
John Smith's Wireless Network
Personally, I could care less that my neighbors see the name of my network.......TWNDB.
It is true that "hiding" the name of the network might keep a few honest neighbors from seeing the name of the network. But, those are probably not the guys that you need to worry about.
In a way, "hiding" your network just creates a larger attraction for the bad guys. They reason that since you are trying to hide your network, there must be more to discover there....and they target you first. -
It is not advertising. I really doubt if the service is good.
Alquian have
service with them. If it is really good. Whoever has the
service. How good
is the service. It really is good is the service.
My english not good
Http://www.hostmonster.com/
http://www.ixwebhosting.com/index.php/v2/pages.planBusinessPlus
http://www.top10webhosting.com/cpanel.php
Http://www.webhosting-top10.com/host52/
The only bad thing is the limitation database
That opinion. One translator.hello sir,
i want to your help
i was installed fresh windows 7 via cd rom and then after installed all software.
and now after 1 day customer complained me that cd rom not read any cd and i m also check when i insurt cd so its not read and when i am double click on cd rom icon its eject so what i do for that please reply on my email address.
[text removed for privacy]
VIMAL -
ACE VIPs not advertising or visible
Hi,
The VIPs on my ACE configuration are not advertising themselves. They don't show up in the ARP table in the upstream router/firewall.
The VIPs are configured to be "Inservice". I have probes that are successful. I can access the real servers behind the ACE successfully via pings, ssh, http, etc.
Here's part of my config:
policy-map multi-match int204-n2
class SMTP_Inbound_LB
loadbalance vip inservice
loadbalance policy SMTP_Inbound_LB-l7slb
loadbalance vip icmp-reply active
Is there anything else I need to add? The VIPs aren't responding to pings. The VIPs aren't showing up in the arp table of the upstream router/firewall.
I know there used to be a "loadbalance vip advertise" command, but that command is no longer valid or available.
I am running code version A1.8(0) on the ACE 4710 appliance.
I have this ACE also configured as a bridge. Is there something special I need to add to make the VIPs advertise themselves, respond to pings, etc.?
Any help would be appreciated.
Thank you.Hi Gilles,
Yes, the policy is assigned to both VLAN interfaces of the bridge-group.
Yes, all VIPs show INSERVICE when I run the command "show service-policy int204-n2"
None of the VIPs are responding to pings or showing up in arp table of the upstream router/firewall.
The VIPs are part of the local subnet. I can't ping the local interface (BVI interface) of the bridge-group from the upstream firewall/router.
Yes, the ACE has an arp entry for the upstream router/firewall. The upstream firewall is also the ACE's default-gateway for this context.
Thanks,
Herman -
I have two routers that has a static route configured for the LAN side which re-distributes via BGP to the WAN.
One of the routers does not have anything connected to LAN subnet/ interface. Other one is live.
Will this create a routing conflict in the network ?Yes, there is an issue here.
why the secondary router is advertising the LAN routes while it doesn't have reachabiility to the LAN.
In case if you are planning to connect the LAN lter it is recomended to configure the static routes with the exit interface.
i.e Ip route x.x.x.x y.y.y.y [LAN interface] [next hop ip add]
Ahmed -
Speed/Duplex are not advertising correctly with configured values
Hi,
I have a gateway which runs on Windows Embedded Standard 7 which has Intel NIC Card.
I have connected this gateway and a switch in a network where switch has configured speed/duplex as 1000Mbps/Full.
When I set the Speed/Duplex on my gateway's NIC to Auto-Negotiate or 1000Mbps/Full, it negotiating/advertising the speed and duplex properly.
But when Speed/Duplex sets to 100Mbps/Full on gateway's NIC, in the Switch it shows that my gateway is advertising the Speed/Duplex as 100Mbps/Half Duplex.
I have checked the registry entries which sets when we configure the Speed/Duplex at adapter properties, registry entries are fine. I am not able to understand how exactly it negotiates Speed/Duplex and why it is advertising with 100Mbps/Half Duplex when
it is configured for 100Mbps/Full.
Thanks,
ChallaskHi Andy,
Thanks for the reply.
I have checked that the configured value on the adapter is 100Mbps/FullDuplex. I am checking these configured values through the registry entry
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\00NN\*SpeedDuplex. It shows the configured value.
The doubt have here is that i have checked the enum values for this *SpeedDuplex entry, it shows in the following way:
0 - Autonegotiation
1- 10Mbps HalfDuplex
2 - 10Mbps FullDuplex
3 - 100Mbps HalfDuplex
4 - 100Mbps FullDuplex
6 - 1000Mbps
Why don't have here the value 5?
I have checked this registry in other Windows Operating systems, it shows correctly. Only in this Windows Embedded Standard 7 OS it shows this way. Will it create any issue? While performing the Speed/Duplex advertisement/Negotiation will it use these enum
values? If so how can I resolve this issue?
Thanks,
Challask -
BGP Conditional Advertisement With 2 Subnets
Is it possible to trigger conditional advertisement of a Border Gateway Protocol (BGP) prefix based upon the non-existence of two subnets? I can only get this to work with one subnet.
My customer has parallel links to a provider (one BGP session).
The command reference mentions one subnet in the description of the non-exist-map.
Perhaps I should just identify one network from this Internet Service Provider (ISP) to focus on as the indicator of the failure.An IP address match is mandatory for a non-exist-map. The access-list specified should be a simple access-list and contains only one prefix. If the condition requires multiple prefixes, multiple access-list can be used, for example:
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match ip address 2 3 4 -
Two switches in server mode do not advertise their vlan info. with each other
Hello All,
I have some queries regarding the VTP advertisement as below.
Scenario.....
I have taken two switches named as switch-A and Switch-B connected with each other with port f0/1.I have defined f0/1 as trunk on both the switches.
Then i created the Vlan 2,3,4 on switch-A ,Switch-A configurations revision number got changed from 0 to 3.But when i look up the same on switch-B the revision number is 0 and the vlan that was created on Switch-A is not replicated to Switch-B.
Both Switch-A and Switch-B has default VTP domain configured i.e Null
Both the Switches are in Server mode.
On both the Switches domain password set to null.
Why the vlan is not getting advertise from Switch-A to Switch-B?.According to the vtp configuration they both belong to the same vtp domain i.e null.
So they should advertise the vlan information with each other.
Your suggestion will be appreciated on this.Awaiting for your reply
Thanks,
Mrityunjay singhHi Jon,
The trunk is up and running fine.Please find the output for trunk and vtp status as below.
SWITCH-A output---------
SWITCH-A(config)#do sh int f0/1 switch
Name: Fa0/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
SWITCH-A(config)#do sh vtp status
VTP Version : 2
Configuration Revision : 3
Maximum VLANs supported locally : 255
Number of existing VLANs : 8
VTP Operating Mode : Server
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x58 0xD0 0x3C 0x06 0x01 0xE3 0xD7 0x4D
Configuration last modified by 0.0.0.0 at 3-1-93 00:03:02
Local updater ID is 0.0.0.0 (no valid interface found)
SWITCH-B output.......
SWITCH-B(config)#do sh int f0/1 swit
Name: Fa0/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
SWITCH-B(config)#do sh vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 255
Number of existing VLANs : 5
VTP Operating Mode : Server
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x7D 0x5A 0xA6 0x0E 0x9A 0x72 0xA0 0x3A
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 0.0.0.0 (no valid interface found)
I have tried by changing the vtp domain name instead of null and it is working fine in that scenario.But my question is why not is works when the vtp domain is set to null on both the switches.
Your update would be appreciated.
Thanks,
Mrityunjay Singh -
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What do I have to do to my OSx 10.5.4 server so that it advertises itself so that it will be listed in the OS9 Chooser?
Oh man, is that supported any more?
If it is, at the very least you would need to enable AppleTalk on the server (it's usually off by default).
System Preferences -> Network -> (interface) -> AppleTalk.
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