11-02-2008 12:57 PM - edited 03-04-2019 12:09 AM
Hi ppl, I have serios problems, I have 2 router, one side is ATM technology and other side is Frame-Relay. Service Provider use Frame-Relay to ATM Translation FRF.8.1, i have like 10 locations on Frame-Releay and now i have on central location ATM so now I want to all location connect to ATM Central Location. Routing is ok but I all the time loosing packet when i ping.
I will copy configuration and ping command. Service Provider say that they have NORTEL Switch for interconnections.
Thanks for any help!!!
*** ROUTER ATM SIDE ***
interface ATM1/0
mtu 1500
no ip address
load-interval 30
no atm ilmi-keepalive
pvc 3845-ATM 0/16 ilmi
ilmi manage
interface ATM1/0.50 point-to-point
description *** to Router Frame-Relay
ip address 192.168.1.102 255.255.255.252
pvc Unitic 2/50
protocol ip 192.168.1.101 broadcast
vbr-nrt 512 512
oam-pvc manage
encapsulation aal5snap
PING LOOSING PACKETS FROM ATM SIDE
Rt3845-ATM36-sar01#ping 192.168.1.101 repeat 200
Type escape sequence to abort.
Sending 200, 100-byte ICMP Echos to 192.168.1.101, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (200/200), round-trip min/avg/max = 8/8/16 ms
Rt3845-ATM36-sar01#ping 192.168.1.101 repeat 500
Type escape sequence to abort.
Sending 500, 100-byte ICMP Echos to 192.168.1.101, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!
Success rate is 99 percent (499/500), round-trip min/avg/max = 8/8/12 ms
*** ROUTER FRAME RELAY SIDE ***
interface Serial0/0/0
no ip address
encapsulation frame-relay IETF
no fair-queue
frame-relay traffic-shaping
!
interface Serial0/0/0.1 point-to-point
bandwidth 512
ip address 192.168.1.101 255.255.255.252
no ip mroute-cache
no cdp enable
frame-relay class 512_ATM
frame-relay interface-dlci 50
!
map-class frame-relay 512_ATM
frame-relay cir 512000
frame-relay bc 5120
frame-relay be 0
frame-relay mincir 512000
PING LOOSING PACKETS FROM FRAME RELAY SIDE
router-FR#ping 192.168.1.102
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.102, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
router-FR#ping 192.168.1.102 repeat 200
Type escape sequence to abort.
Sending 200, 100-byte ICMP Echos to 192.168.1.102, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 99 percent (198/200), round-trip min/avg/max = 8/9/12 ms
router-FR#ping 192.168.1.102 repeat 200
Type escape sequence to abort.
Sending 200, 100-byte ICMP Echos to 192.168.1.102, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 99 percent (198/200), round-trip min/avg/max = 8/9/12 ms
router-FR#
11-03-2008 02:42 AM
Hello Anis,
be aware that ATM side has more overhead:
IP frames are placed inside an AAL5 PDU that is then segmented in ATM cells
you are using AAL5SNAP encapsulation.
see the following:
http://www.cisco.com/en/US/docs/ios/12_2/wan/configuration/guide/wcffratm.html#wp1009756
Hope to help
Giuseppe
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide