The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: tag switching over Frame Relay
Is cef enabled and labels in cef table ok? marcelo. On Wed, 27 Mar 2002, CEW CEW wrote: > > Hi... > > Has anyone ever encounter problem with tag-switching > over frame relay using 12.1.5T12 and 12.1.5T10 with > 3600 and 7200 platform ? > > Below is my problem > > [r1]----FR-----[r2]-----[r5] > > r1 trying to reach r5 (5.5.5.5) loopback > > THe control plane and forwarding plane looks OK, but > the ping just couldn't get through. Removing tag > switching at r1, ping is OK. > > Below some show output. Pls see comments in ###### > > Thanks in advance. > > THanks > Eng Wee > > > > r1-3640#i > Codes: C - connected, S - static, I - IGRP, 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, E - EGP > i - IS-IS, 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 > > 1.0.0.0/32 is subnetted, 1 subnets > C 1.1.1.1 is directly connected, Loopback0 > 2.0.0.0/32 is subnetted, 1 subnets > i L2 2.2.2.2 [115/20] via 10.10.123.2, Serial2/0 > 4.0.0.0/32 is subnetted, 1 subnets > i L2 4.4.4.4 [115/20] via 10.10.14.4, Serial2/2 > 5.0.0.0/32 is subnetted, 1 subnets > i L2 5.5.5.5 [115/30] via 10.10.123.2, Serial2/0 > 10.0.0.0/24 is subnetted, 3 subnets > C 10.10.14.0 is directly connected, Serial2/2 > i L2 10.10.25.0 [115/20] via 10.10.123.2, Serial2/0 > C 10.10.123.0 is directly connected, Serial2/0 > > ##### r1 is able to reach 5.5.5.5 via s2/0 > > > > r1-3640#sh tag-switching tdp dis > Local TDP Identifier: > 1.1.1.1:0 > TDP Discovery Sources: > Interfaces: > Serial2/0: xmit/recv > TDP Id: 2.2.2.2:0 > Serial2/2: xmit/recv > TDP Id: 4.4.4.4:0 > ##### tag-switching neighbor is OK > > > r1-3640#sh tag-switching forwarding-table > Local Outgoing Prefix Bytes tag > Outgoing Next Hop > tag tag or VC or Tunnel Id switched > interface > 16 Pop tag 2.2.2.2/32 0 Se2/0 > 10.10.123.2 > 18 18 5.5.5.5/32 0 Se2/0 > 10.10.123.2 > 19 Pop tag 10.10.25.0/24 0 Se2/0 > 10.10.123.2 > 20 Pop tag 4.4.4.4/32 0 Se2/2 > point2point > r1-3640# > > #### tag-switching forwarding table for 5.5.5.5 > is ok, with local label 18, outgoing label 18 > > > > r1-3640#sh tag tdp bin 5.5.5.5 32 > tib entry: 5.5.5.5/32, rev 45 > local binding: tag: 18 > remote binding: tsr: 2.2.2.2:0, tag: 18 > remote binding: tsr: 4.4.4.4:0, tag: 31 > ##### LIB looks good as well, r1 uses the > label distributed from r2(2.2.2.2)=18 > > > > r2-7206#i > Codes: C - connected, S - static, I - IGRP, 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, E - EGP > i - IS-IS, 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 > > 1.0.0.0/32 is subnetted, 1 subnets > i L2 1.1.1.1 [115/20] via 10.10.123.1, Serial3/0.1 > 2.0.0.0/32 is subnetted, 1 subnets > C 2.2.2.2 is directly connected, Loopback0 > 4.0.0.0/32 is subnetted, 1 subnets > i L2 4.4.4.4 [115/30] via 10.10.123.1, Serial3/0.1 > 5.0.0.0/32 is subnetted, 1 subnets > i L2 5.5.5.5 [115/20] via 10.10.25.5, Serial3/1 > 10.0.0.0/24 is subnetted, 3 subnets > i L2 10.10.14.0 [115/20] via 10.10.123.1, > Serial3/0.1 > C 10.10.25.0 is directly connected, Serial3/1 > C 10.10.123.0 is directly connected, Serial3/0.1 > > ###### r2 can reach 5.5.5.5 via s3/1 > > > r2-7206#sh tag-switching forwarding-table > Local Outgoing Prefix Bytes tag > Outgoing Next Hop > tag tag or VC or Tunnel Id switched > interface > 16 Pop tag 1.1.1.1/32 2726 > Se3/0.1 10.10.123.1 > 18 Pop tag 5.5.5.5/32 0 Se3/1 > point2point > 19 Pop tag 10.10.14.0/24 0 > Se3/0.1 10.10.123.1 > 20 20 4.4.4.4/32 0 > Se3/0.1 10.10.123.1 > > ##### LFIB at r2 looks OK, 5.5.5.5 has an incoming > label of 18 and outgoing label of POP. > > > r2-7206#sh tag-switching tdp bindings 5.5.5.5 32 > tib entry: 5.5.5.5/32, rev 8 > local binding: tag: 18 > remote binding: tsr: 5.5.5.5:0, tag: imp-null > remote binding: tsr: 1.1.1.1:0, tag: 18 > ###### LIB of r2 looks OK, r2 receive imp-null > from r5 (5.5.5.5) to POP the tag. PEN-HOP popping. > > > r1-3640#ping 5.5.5.5 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 5.5.5.5, timeout is > 2 seconds: > ..... > Success rate is 0 percent (0/5) > #### r1 just can't ping 5.5.5.5 > > > r1-3640#conf t > r1-3640(config)#int s2/0 > r1-3640(config-if)#no tag ip > r1-3640# > r1-3640#ping > 02:32:48: %SYS-5-CONFIG_I: Configured from console by > console5.5.5.5 > > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 5.5.5.5, timeout is > 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip > min/avg/max = 4/5/8 ms > > ###### remove tag-switching i at r1 FR interface, ping > is OK. > > > __________________________________________________ > Do You Yahoo!? > Yahoo! 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