Frame Relay - practical experience
Hello :-)
I have several questions to Frame relay.
1) Do companies nowadays still use Frame relay to connect different branches over leased lines?
2) Which other methods are used to connect two or more branches? (except Site-to-Site VPN)
3) It is hard for me to understand the cabling: I have a cisco router which I connect via serial cable with the CSU/DSU.
The CSU/DSU is connected with the Frame Relay Switch from the ISP? Which cable is used between the CSU/DSU and the FRSW?
Where is the CSU/DSU located? Is this right:
https://ls-a.org/lib/exe/fetch.php?media=school:equipment.png
When I see those components, I would say they are 20 years old.
Please help me to understand it.
Thanks in advance.
Hi,
1) Do companies nowadays still use Frame relay to connect different branches over leased lines?
Yes, some companies still do. Frame relay is not as popular as it used to be 8 or 10 years ago specially in the U.S. It is so much faster and cheaper to get an Ethernet (50Mb, 100Mb, Gig, etc..) than using Frame Relay.
2) Which other methods are used to connect two or more branches? (except Site-to-Site VPN)rnet
Side-to-side VPN, Ethernet, DS3, some point-to-point T1s.
3) It is hard for me to understand the cabling: I have a cisco router which I connect via serial cable with the CSU/DSU.
The CSU/DSU is connected with the Frame Relay Switch from the ISP? Which cable is used between the CSU/DSU and the FRSW?
If I remember correctly, its copper.
Where is the CSU/DSU located? Is this right:
The newer Cisco routers have CSU/DSU build into the WIC (T1 card). So you don't need any extra cable. You just need a copper RJ45 that connects your router back to the provider. The old 2500, 2600 routers did not have build in CSU/DSUs and so you had to use an external CSU/DSU.
HTH
Similar Messages
-
THERE IS A FR NETWORK HUB AND SPOKE
IN STAR TOPOLOGY. AT HUB ROUTER THERE ARE POINT-TO-POINT SUBINTERFACES TO SPOKE ROUTERS AND STATIC FR MAP ENTRIES ARE PRESENT. tHE SPOKE ROUTERS COMMUNICATE WITH HUB ROUTER BUT DO NOT COMMUNICATE WITH EACH OTHER.
MY QUESTION IS WHAT TO DO FOR COMMUNICATIONS BETWEEN SPOKE ROUTERS,
1. IS ANY MORE DLCI MAY BE REQUIRED BETWEEN SPOKE ROUTERS?.
2.IS MAP STATEMENT REQUIRED, DLCI WITH IP ADDRESS BETWEEN SPOKE ROUTERS ?Abdul
There are a couple of things in your question that I hope you can clarify and if so we should be able to get good answers to your question.
At one point you describe the topology as hub and spoke and at another point you describe it as star. Most of us understand these to be two different topologies. So is it hub and spoke or is it star?
Many of us understand hub and spoke to be remote routers connected directly to a central (hub) router while a star is remote routers where some of the remote routers have direct connections to other remotes.
Also you say that the hub has point to point subinterfaces and this is generally the best practice for Frame Relay. Then you say that static FR map entries are present. I do not understand this because with p-t-p subinterfaces you do not need FR maps.
Based on what we have so far I would say that these are the answers to your questions:
1. you might choose to add additional DLCIs but they are not required. any spoke should be able to communicate with any spoke by going to the hub and having the hub forward to the other spoke.
2. No map statements should be required. Part of having p-t-p subinterfaces at the hub is that each spoke is an separate subnet. Therefore from any spoke to any other spoke is just going to a different subnet (through the hub) and no map would be required.
If these answers do not satisfy your requirements then perhaps you can clarify the points about your question.
HTH
Rick -
I read in one of Job descritpion "Experience of working on circuit(T1/E1,T3/E3,Ethernet) troubleshooting would be preferred".
Could u please help me this circuit t1/e1,etc. Is it covered in ccnap or ccnp rs ?
Is it frame-relay or mpls or other ?
Could you please explain or suggest me the book/blog/doc/etc.Please refer this:
http://www.ad-net.com.tw/index.php?id=500 -
Hello All,
Can some please take the pain to take me through each step in configuring a frame-relay plz?
I'm determined for CCNA and cannot afford the tuition but can afford three routers as explained by the book im using. Unfortunately i cannot gather all the wants me to get(probably misconception) in order to set-up frame relay.
Please i need the steps to guide as if to a lay man i.e what goes from one router to the other, type of cable to link them etc and to what port, how the remaining two routers will particiapte etc
Hope somebody can help?Hi, newnetman
Here is the step-by-step
1.Go to ebay and buy the following stuff
One set of 4-serial port router. Two affordable options are 2520 and 2610+NM-4A/S.This will be your frame-relay switch
Three set of 2-serial port routers. To make things simple, I would suggest 2501(it has 2 fixed serial port) or 2610+WIC-1T(in this case, you have only 1 serial port, but it is not a problem for our lab building)
three pieces of Back to Back DCE/DTE DB60 Crossover Cables. You might want to add one cable to connect 2 routers(not frame-relay) so you can practice PPP without the need to re-wire the cable.
2.Connect each router according the following cabling plan
FR.s0R1.s0
FR.s1R2.s0
FR.s2R3.s0
R1.s1R2.s1 (Suppose you have additional cables and additional ports)
Each cable has one side marked as DCE and the other side marked as DTE. To make things simple we choose the DCE site to be connected to the FR and the DTE site to be connected to a normal router.(FR.s0 means serial port #0 of Frame-relay switch, FR.s1 means serial port #1 of Frame-relay switch,etc)
3.Copy the commands I write on the attached file and paste to your Frame-Relay
Here I give you 3 PVCs :
R1.s0.102<--->R2.s0.201
R1.s0.103<--->R3.s0.301
R2.s0.203<--->R3.s0.302
If you want create your own pvcs with different value, just substitute the above numbers to your own
4.Last step. Finish the PVC on R1,R2, and R3, but for being a CCNA candidate, that's what you must know and configure it by yourself, isn't it?(Anyway, if you still feel difficult on this step, just let me know.)
Good Lucks
SSLIN
P.S. It takes me a while to write this step-by-step. I'm happy doing it. I feel no pain. -
I'm tryint to apply qos to our frame-relay links.
Rferencing this document
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_configuration_example09186a0080094af9.shtml
I'm using software vers. 123-14.T3
The problem I am having is that when I apply frame-relay traffic-shaping to the frame-relay serial interface all my data and voice get corrupted(very choppy voice, intermittant pings, application timeouts etc.) My network essentially slows to a crawl.
This occurs before I have applied the class to the dlci.
I would assume no traffic shaping would take place until I apply a class to the frame relay dlci.
Has anyone seen this or have any suggestions?Hello,
The moment you apply the command "frame-relay traffic-shaping" under the frame-relay serial interface, all the sub-interfaces/DLCIs will default to 56kbps CIR, since you haven't applied the class under the DLCI yet.
Best practice is to configure a default map-class with a higher CIR and apply that under the main interface before you configure frame-relay traffic-shaping. So, if there is no class defined under any sub-interface, the DLCI will inherit the traffic shaping parameters from the class defined under the main interface. If there is a class defined under the DLCI, the traffic shaping properties from that class will take affect for that DLCI.
Hope that helps.
Regards,
Srikanth -
Configuring CE-PE link on Frame Relay over ATM
Hi!
Need you guys expert opinion on how to configure configuring CE-PE link on Frame Relay over ATM. I am stump by this one because I never done it before. The CE is a Cisco 7206 with ATM PA and the parameters given to us is DLCI number in x/y format...isn't that the format for PVC. When asked, my SP contact says that it is indeed FR over ATM. Any of you guys who have experience to guide on this or point me in the right direction is most welcome. Thanks
Rgds
HelmeHello Helme,
ask your provider if they are doing FR to ATM service interworking.
In that case one side is configured for Frame-Relay and the other side for ATM
Service interworking is done by provider.
Verify that you have the same MTU on both sides and configure following ISP specifications
ATM uses two numbers to identify a PVC
int atm 4/0
no ip address
no shut
int atm 4/0.1 point-to-point
mtu 1500
ip address x.x.x.1 255.255.255.252
pvc x/y
enc aal5snap
protocol ip x.x.x.2 broadcast
this should be enough to have it working
on the other side configure or have a point-to-point subif configured on FR
see this example
http://www.cisco.com/en/US/tech/tk39/tk53/technologies_configuration_example09186a00801747e3.shtml
Hope to help
Giuseppe -
Frame-relay - config a router as a switch
I am trying to configure a router as a frame-relay switch called R3.
R1 (S0/1) is connected to my Frame-Relay Switch R3 (S1/0). R3 has a further 3 connections (S1/1, S1/2 & S1/3) to R2, R4 &R5. So R1 uses subinterfaces.
I am having problems configuring the switch to say connect R1 to R2.
Here is my R1 config:
Interface Serial0/0
No ip address
Encapsulation frame-relay
interface Serial0/0.1 point-to-point
ip address 10.1.1.1 255.255.255.0
frame-relay interface-dlci 16
interface Serial0/0.2 point-to-point
ip address 10.1.2.1 255.255.255.0
frame-relay interface-dlci 17
interface Serial0/0.3 point-to-point
ip address 10.1.3.1 255.255.255.0
frame-relay interface-dlci 18
Here is my Frame-Relay switch (R3) config:
frame-relay switching
Interface Serial1/0
No ip address
Encapsulation frame-relay
Clock rate 64000
Frame-relay intf-type dce
interface Serial1/0.1 point-to-point
frame-relay interface-dlci 16
interface Serial1/0.2 point-to-point
frame-relay interface-dlci 17
interface Serial1/0.3 point-to-point
frame-relay interface-dlci 18
Interface Serial1/1
No ip address
Encapsulation frame-relay
Clock rate 64000
frame-relay interface-dlci 20
Interface Serial1/2
No ip address
Encapsulation frame-relay
Clock rate 64000
frame-relay interface-dlci 21
Interface Serial1/3
No ip address
Encapsulation frame-relay
Clock rate 64000
frame-relay interface-dlci 22
Here is my R2 config:
interface Serial0/0
ip address 10.1.1.2 255.255.255.0
encapsulation frame-relay
no fair-queue
frame-relay interface-dlci 20
Normally I would enter the frame-relay switch command?
Frame-relay route 16 interface s1/1 20
I want to use subinterrfaces and not multipoint.
Why does this not work?? I cannot get connectivity from R1 to R2!John
It is fine to use subinterfaces on R1 and R2 (in fact it is best practice to use point to point subinterface for Frame Relay). But I do not believe that you can do subintefaces on the router that is acting as the switch. I believe that the key elements of the router as frame relay switch include: frame-relay switching (which you have), Frame-relay intf-type dce (which you have), and Frame-relay route 16 interface s1/1 20 (which you need to add in place of the subinterfaces with DLCI identifier).
HTH
Rick -
Accessing Oracle through Frame relay
Is anyone using a 56k Frame relay communications connection to the applications. We are attempting to deploy sales offices on Frame relay and are experiencing very slow response time. THe interesting thing is that the communications provider is telling us that we are not using all of the available bandwidth!!
Other ideas or experiences would be great. You can also contact me on my e-mail at [email protected]
Thanks for any inputHi,
I'm using 128k frame relay + satelite and I was fancing this situations, so the network admin find out that the link was losting packs.
Ask your communications provider to check it. I think it�s possible do it using ping.
Besides that we are using metaframe to improve the performance because we have a lot of conetions.
Good look.
Marcelo. -
Can't ping routers across point-to-point frame-relay
'evening,
Really basic setup. Designed with Packet Tracer, trying to ping routers across a point-to-point frame-relay. I've designed this according to three different training sources who all say the same thing. Yet, all pings failed.
The shows:
R1
R1#copy run st
Destination filename [startup-config]?
Building configuration...
[OK]
R1#show run
Building configuration...
Current configuration : 883 bytes
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
hostname R1
no ip domain-lookup
interface FastEthernet0/0
no ip address
duplex auto
speed auto
shutdown
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
interface Serial1/0
no ip address
encapsulation frame-relay
interface Serial1/0.12 point-to-point
ip address 192.168.12.1 255.255.255.0
frame-relay interface-dlci 102
interface Serial1/0.13 point-to-point
ip address 192.168.13.1 255.255.255.0
frame-relay interface-dlci 103
ip classless
end
R1#show frame-relay lmi
LMI Statistics for interface Serial1/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 638 Num Status msgs Rcvd 638
Num Update Status Rcvd 0 Num Status Timeouts 16
LMI Statistics for interface Serial1/0.12 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 0 Num Status msgs Rcvd 0
Num Update Status Rcvd 0 Num Status Timeouts 16
LMI Statistics for interface Serial1/0.13 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 0 Num Status msgs Rcvd 0
Num Update Status Rcvd 0 Num Status Timeouts 16
R1#show frame-relay map
Serial1/0.12 (up): point-to-point dlci, dlci 102, broadcast, status defined, active
Serial1/0.13 (up): point-to-point dlci, dlci 103, broadcast, status defined, active
R1#show frame-relay pvc
PVC Statistics for interface Serial1/0 (Frame Relay DCE)
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0.12
input pkts 14055 output pkts 32795 in bytes 1096228
out bytes 6216155 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 32795 out bcast bytes 6216155
DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0.13
input pkts 14055 output pkts 32795 in bytes 1096228
out bytes 6216155 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 32795 out bcast bytes 6216155
R2
R2#SHOW RUN
Building configuration...
Current configuration : 772 bytes
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
hostname R2
no ip domain-lookup
interface Serial1/0
no ip address
encapsulation frame-relay
interface Serial1/0.12 point-to-point
ip address 192.168.12.2 255.255.255.0
frame-relay interface-dlci 201
ip classless
end
R2#show fr map
Serial1/0.12 (up): point-to-point dlci, dlci 201, broadcast, status defined, active
R2#show fr pvc
PVC Statistics for interface Serial1/0 (Frame Relay DTE)
DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0.12
input pkts 14055 output pkts 32795 in bytes 1096228
out bytes 6216155 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 32795 out bcast bytes 6216155
R2#show fr lmi
LMI Statistics for interface Serial1/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 679 Num Status msgs Rcvd 678
Num Update Status Rcvd 0 Num Status Timeouts 16
LMI Statistics for interface Serial1/0.12 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 0 Num Status msgs Rcvd 0
Num Update Status Rcvd 0 Num Status Timeouts 16
R3
R3#show run
Building configuration...
Current configuration : 772 bytes
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
hostname R3
interface Serial1/0
no ip address
encapsulation frame-relay
interface Serial1/0.13 point-to-point
ip address 192.168.13.2 255.255.255.0
frame-relay interface-dlci 301
ip classless
end
R3#show fr map
Serial1/0.13 (up): point-to-point dlci, dlci 301, broadcast, status defined, active
R3#show fr lmi
LMI Statistics for interface Serial1/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 703 Num Status msgs Rcvd 702
Num Update Status Rcvd 0 Num Status Timeouts 16
LMI Statistics for interface Serial1/0.13 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 0 Num Status msgs Rcvd 0
Num Update Status Rcvd 0 Num Status Timeouts 16
R3#show fr pvc
PVC Statistics for interface Serial1/0 (Frame Relay DTE)
DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0.13
input pkts 14055 output pkts 32795 in bytes 1096228
out bytes 6216155 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 32795 out bcast bytes 6216155
Any input would really be appreciated.
ThanksTurns out the mistake was not adding a mask to the subnet. Ex:
Router_2(config_router)# network 192.168.0.0 0.0.255.255
Router_2(config_router)# network 172.27.0.0 0.0.255.255
Doing that on both routers made the hosts capable of pinging each other.
Thanks for the tips everyone -
Connection from remote sites (Frame Relay WAN) to AS/400 dissapears
Hello,
We have the following problem appearing in our environment:
All connections from remote sites dissapears unexpected from AS/400. After 2-3 minutes remote users get normal connectivity again.
The environment is the the following:
Frame Relay/ATM WAN (Frame Relay on remote sites and ATM in datacenter) comes to Cisco 7204VXR router which connected to LAN switch with 10/100/1000 ports. AS/400 with Fast Ethernet interface also connected to the similar LAN switch. CEF is enabled on the router, IOS version 12.4.3a. We have ETHSTD *ALL parameter set on AS/400. Remote users uses TCP/IP and Telnet but there are a number of 5494 controllers wich uses SNA.
We got the problem for the first time after we enabled CEF on the router.
I suspect that the cause of problem is Ethernet frames of different standards due to ETHSTD *ALL, but can neither reproduce the problem nor understand why it behaves so.
Have anybody had similar problem?
I would be very thanksfull if somebody can help me to solve it.
Thank you in advance.
//Mikhail GaliulinHi Martin,
Cisco 7200 itself can access AS/400 as well as all other hosts in the same with AS/400 LAN. There is no any outage in communications which goes to another LAN segment via Netscreen firewall while the communication via Cisco is down. Only those hosts which connected via Cisco are experiencing the problem. I can not say where the traceroute from AS/400 stucks (there are other people who maintain the machine and they never could catch the exact moment of outage).
To turn off CEF I treat as the last option actually and unfortunatelly there is no guarantee that software upgrade will help (we have 12.4.3a now).
So first of all I'm trying to understan WHY it happens because I can not see any systematics in the problem appearance. It can happen 3 times under 2 days and then dissapear for 1-2 months...
//Mikhail Galiulin -
Configuring Frame-Relay and the Frame-Relay Switch To Participate in WAN Routing
Hey,
My WAN in my voice lab is currently functional between all of my routers HQ, BR1, and BR1 with full-mesh connectivity. I am using my PSTN router for the frame-relay switching as is shown in the attached configs. I have used the connect commands for the PVC routing logic.
connect HQ-BR1 Serial0/3/0 101 Serial0/2/0 201
connect HQ-BR2 Serial0/3/0 102 Serial0/2/1 301
connect BR1-BR2 Serial0/2/0 202 Serial0/2/1 302
My question concerns the possibility of getting the PSTN router to participate in the WAN and the OSPF routing process? The connect command tells how the PVCs are to be connected and pass through the PSTN router. Is there anyway to do it so that a PVC connects to the PSTN router itself?
I would specifically like to create a connection between the HQ and PSTN router over the WAN. If anyone has any insight on this I would really appreciate it.
Thank you.Hello Adam,
you don't need to do FR switching.
You just need to configure a back to back PVC associated to a p2p subinterface under PSTN router interface se0/3/0 and HQ:se0/1/0. the new PVC can be 103 on both sides
PSTN
interface ser0/3/0.103 point-to-point
ip address 10.1.13.1 255.255.255.0
frame-relay interface-dlci 103
HQ
interface ser0/1/0.103 point-to-point
ip address 10.1.13.1 255.255.255.0
frame-relay interface-dlci 103
note: I was able to do this using the older syntax frame-relay route under interface configuration on frame relay switch. I would expect to work for you too with newer syntax connect.
Hope to help
Giuseppe -
2621 as a Frame Relay switch & terminal server?
Is it unwise to use a 2621 as a combined Frame Relay switch & terminal server in a home lab? Both functions seem to move a general-purpose router into the dedicated use category.
Likewise, is it true than configuring a router to serve as a Frame Relay switch isn't memory intensive?
If I am wrong in my assumptions, please feel free to correct my misperceptions.
Thanks.Using the 2621 for frame and TS should be fine. I do it in my lab and have never had a problem.
-
Dear Sir/Madam,
I have Frame relay CIR 256 kps with configure as follow:
factory#show run
Building configuration...
Current configuration : 2126 bytes
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
hostname factory
enable secret xxx
enable password xxx
ip subnet-zero
interface FastEthernet0/0
ip address 192.168.0.1 255.255.254.0
ip access-group 100 in
duplex auto
speed auto
interface Serial0/0
bandwidth 256
no ip address
encapsulation frame-relay
no fair-queue
traffic-shape rate 192000 24000 24000 1000
frame-relay lmi-type ansi
frame-relay ip rtp header-compression
ip rtp reserve 16384 100 192
interface Serial0/0.1 point-to-point
description connected to Office
ip address 192.168.50.2 255.255.255.0
no cdp enable
frame-relay interface-dlci 16
interface Serial0/1
no ip address
shutdown
interface Serial0/2
no ip address
shutdown
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.50.1
ip http server
ip pim bidir-enable
access-list 100 permit tcp any any eq www
access-list 100 permit tcp any any eq smtp
access-list 100 permit tcp any any eq ftp
access-list 100 permit tcp any any eq pop3
access-list 100 permit tcp any any eq ident
access-list 100 permit tcp any any eq 443
access-list 100 permit tcp any any eq 3389
access-list 100 permit tcp any any eq ftp-data
access-list 100 permit tcp any any eq 143
access-list 100 permit tcp any any eq telnet
access-list 100 permit tcp any any eq 161
access-list 100 permit tcp any any eq domain
access-list 100 permit udp any any eq domain
access-list 100 permit tcp any any eq 139
access-list 100 permit udp any any eq netbios-ns
access-list 100 permit tcp any any eq 135
access-list 100 permit udp any any eq snmp
access-list 100 permit tcp any any eq 8080
access-list 100 permit ip host 192.168.0.22 any
access-list 100 permit ip host 192.168.0.23 any
access-list 100 deny ip any any
access-list 100 deny eigrp any any
snmp-server community public RO
line con 0
line aux 0
line vty 0 4
password xxx
login
end
factory#show int s0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
MTU 1500 bytes, BW 256 Kbit, DLY 20000 usec,
reliability 255/255, txload 61/255, rxload 56/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 8861, LMI stat recvd 8861, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 1d00h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 57000 bits/sec, 13 packets/sec
5 minute output rate 62000 bits/sec, 14 packets/sec
663283 packets input, 419498487 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
16 input errors, 9 CRC, 7 frame, 0 overrun, 0 ignored, 0 abort
820043 packets output, 138740120 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
factory#
When show int s0/0 I see that:16 input errors, 9 CRC. I think errors from service provider? because I alway use under 100 kps but still have some errors.
Thanks very much,
NhuongPhamWhen you're able, schedule some downtime for this circuit, and have your provide do some loopback testing on an off-hours time. Simply open a trouble ticket with them, indicating that you're taking CRC errors at the customer-premisis-equipment. 16 input hours per day doesn't seem like alot, but it's still worth checking out, especially since your WAN provider should do this for free.
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ASR1K 5xE1 MFR Frame relay traffic not forwarding in one direction
Dear Techies,
Hope all is well !
Im doing this inter-op testing with Alcatel device for frame-relay and MFRs and got stuck at this situation which is actually mind boggling and I think i might be missing something "silly" :-(
Its a simple setup of
1. My ASR 1002-X with a LAN (Gig0/0/0) port is connected to a traffic generator.(ixia).
2. ASR WAN port is a 5xE1 bundled into a MFR circuit.
3. WAN link goes to a Alcatel box giving me my FR-DCE with E1s over MFR.
Issue is , I can send traffic to max throughput with flow initiated from LAN to WAN bit NOT the reverse flow initiated from WAN side to LAN port. I see traffic coming into my 5xE1s (1.8 mbps each) but the traffic just wont go to the LAN side , somewhere it gets "stuck" or "dropped".
PING works fine from both sides.......but sending traffic is not possible !!
ASR CONFIG
controller SONET 0/3/0
framing sdh
clock source line
aug mapping au-4
au-4 1 tug-3 1
mode c-12
tug-2 1 e1 1 unframed
tug-2 1 e1 2 unframed
tug-2 1 e1 3 unframed
tug-2 2 e1 1 unframed
tug-2 2 e1 2 unframed
tug-2 2 e1 3 unframed
au-4 1 tug-3 2
mode c-12
tug-2 1 e1 1 unframed
tug-2 1 e1 2 unframed
tug-2 1 e1 3 unframed
au-4 1 tug-3 3
mode c-12
interface MFR1
no ip address
encapsulation frame-relay IETF
load-interval 30
frame-relay multilink bid 10MB-PiPe
frame-relay multilink bandwidth-class a
frame-relay lmi-type ansi
interface MFR1.1 point-to-point
ip address 10.10.17.2 255.255.255.0
frame-relay interface-dlci 100
interface GigabitEthernet0/0/0
no ip address
load-interval 30
negotiation auto
interface GigabitEthernet0/0/0.110
encapsulation dot1Q 110
ip address 11.11.11.1 255.255.255.0
interface Serial0/3/0.1/1/1/1:0
no ip address
encapsulation frame-relay MFR1
frame-relay multilink lid First-Link
interface Serial0/3/0.1/1/1/2:0
no ip address
encapsulation frame-relay MFR1
frame-relay multilink lid Second-Link
interface Serial0/3/0.1/1/1/3:0
no ip address
encapsulation frame-relay MFR1
frame-relay multilink lid Third-Link
interface Serial0/3/0.1/1/2/1:0
no ip address
encapsulation frame-relay MFR1
frame-relay multilink lid Fourth-Link
interface Serial0/3/0.1/1/2/2:0
no ip address
encapsulation frame-relay MFR1
frame-relay multilink lid Fifth-Link
SDH_FR#sh frame-relay mul
SDH_FR#sh frame-relay multilink
Bundle: MFR1, State = up, class = A, fragmentation disabled
BID = 10MB-PiPe
Bundle links:
Serial0/3/0.1/1/1/1:0, HW state = up, link state = Up, LID = First-Link
Serial0/3/0.1/1/2/2:0, HW state = up, link state = Up, LID = Fifth-Link
Serial0/3/0.1/1/2/1:0, HW state = up, link state = Up, LID = Fourth-Link
Serial0/3/0.1/1/1/3:0, HW state = up, link state = Up, LID = Third-Link
Serial0/3/0.1/1/1/2:0, HW state = up, link state = Up, LID = Second-Link
SDH_FR#
SDH_FR#
SDH_FR#
SDH_FR#sh fram
SDH_FR#sh frame-relay pvc 100
PVC Statistics for interface MFR1 (Frame Relay DTE)
DLCI = 100, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = MFR1.1
input pkts 8045 output pkts 8044 in bytes 515748
out bytes 527920 dropped pkts 0 in pkts dropped 0
out pkts dropped 0 out bytes dropped 0
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 0 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
pvc create time 01:07:58, last time pvc status changed 01:07:58
fragment type end-to-end fragment size 1400
SDH_FR#
SDH_FR#
SDH_FR#
SDH_FR#
SDH_FR#
SDH_FR#
SDH_FR#ping 10.10.17.1-------------------------------------------------------------------------- THIS IS ALCATEL SIDE FROM TRAFFIC HAS TO COME.
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.17.1, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/3/4 ms
SDH_FR#
SDH_FR#
SDH_FR#sh frame-relay traffic
Frame Relay statistics:
ARP requests sent 0, ARP replies sent 0
ARP request recvd 0, ARP replies recvd 0
SDH_FR#What is the access rate of the head end?
Are you using a codec other than G711?
How many total sites are involved, what protocols are you running?
From the math, 32K is not enough CIR to ensure 4 calls proper Bandwidth. At what point is the voice degrading, is is choppy missing message, sound, jitter, echo or after 1, 2 or 3 calls.
Even if you are using G729a, voice packets could be dropped. Not to say that it is here, but look at the FRS stats to see ip packets are being dropped.
Traffic shaping is always recommended, rtp header compression will help, but the trade-off is around a 20% CPU hit.
If you implement traffic shapping , it needs to be done throughout the network as queueing delays related to data on other slow links and at the headend (specifically here) could be the cause of the distortion alone. I would at least try traffic shapping first, then if the problem doen't go away, increase CIR for Voice, if there are still issues, implement LLQ. -
All,
Sorry for asking this, but I have been beating my head against the wall here. I am getting a T1 installed in my residence for internet connectivity. I am using an old wic-1-dsu-t1-v1 in a 2610 router. I am unable to get this configuration working. I have a very simple configuration so far on the router, but I am unable to get this to come up. I have put the show run below. Some of the commands are default and are not showing up. Obviously I have changed the ip's to generic ones below. Any ideas?
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
hostname JSS-2610-001
memory-size iomem 10
ip subnet-zero
interface Ethernet0/0
no ip address
shutdown
interface Serial0/0
no ip address
shutdown
interface Serial0/1
no ip address
shutdown
interface Serial0/2
no ip address
encapsulation frame-relay IETF
frame-relay lmi-type ansi
interface Serial0/2.21 point-to-point
ip address 1.1.1.3 255.255.255.252
frame-relay interface-dlci 16
ip classless
ip route 0.0.0.0 0.0.0.0 1.1.1.2
ip http server
line con 0
speed 115200
line aux 0
line vty 0 4Sorry when I transposed the ip's to post i made a mistake in them. 1.1.1.2 is my address and 1.1.1.1 is the gateway for them (their side of the t1). I have it configure correctly on my router with the real ip's.
Here is the post to the rest of your questions:
Serial0/2 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY IETF, loopback not set
Keepalive set (10 sec)
LMI enq sent 16787, LMI stat recvd 16788, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 2812/0, interface broadcasts 15
Last input 00:00:04, output 00:00:04, output hang never
Last clearing of "show interface" counters 1d22h
Input queue: 0/75/3/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
16791 packets input, 249054 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 1 giants, 0 throttles
3350 input errors, 1097 CRC, 1758 frame, 0 overrun, 0 ignored, 495 abort
19638 packets output, 1080335 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
6 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
JSS-2610-001#show frame-relay pvc
PVC Statistics for interface Serial0/2 (Frame Relay DTE)
Active Inactive Deleted Static
Local 1 0 0 0
Switched 0 0 0 0
Unused 0 0 0 0
DLCI = 16, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/2.21
input pkts 0 output pkts 2834 in bytes 0
out bytes 844139 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 2809 out bcast bytes 841611
pvc create time 1d22h, last time pvc status changed 15:31:28
Is it possible the carrier just hasn't "activated" the circuit?
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