[nsp] troubleshooting stuck in active routes

From: CLAEREBOUDT Elke (ECLAEREB@mail.mobistar.be)
Date: Thu Oct 04 2001 - 05:25:10 EDT

Hi,

We are experiencing a lotóÅ;st
that bad problem, but it also causes clearing of eigrp neighbourships which
is tóÅ;li
I could trace the problem.
The problem occurs when a router dials in on a pop with a fix ip address.
ThoóÅ;dd
eigrp all over the network.
When those routes dissapear,óÅ;so
neighbourships. It isn't always the same router which isn't responding to
the qóÅ;es
or memory.
There seems to be a loop in the queries.
In theóÅ;mp
from RD, RD from RE, RE from RF, and RF from RA, maybe not óÅ;ha
At the end it is RE which says that the route is SIA and clears the
neighbourship with RF.
Is this a problem whóÅ;we
not a solution for us) ?
I understand why the routes are going in SIA, buóÅ;do
routers don't respond in time, it's not a big network, so a timeout of 3 min
should cause not such a próÅ;m.

Elke

RA#sh ip eigrp top ac
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.221)

Codes: P - Passive, A - Active, UóÅ;pd
       r - Reply status

A 20.1.1.1/32, 1 successors, FD is Inaccessible
    1 replies, active óÅ;0:
         via 10.1.1.194 (Infinity/Infinity), ATM1/0.2, serno 5749193
         via 10.1.óÅ;8
         via 10.1.1.237 (Infinity/Infinity), r, ATM1/0.9, serno 5749208
     óÅ;vi
         via 10.1.1.202 (Infinity/Infinity), ATM1/0.6, serno 5749óÅ;
         via 10.1.1.206 (Infinity/Infini

RA#sh ip route 20.1.1.1
Routing entry for 20.1.1.1/32
  Known via "eig
 
  Advertised by ospf 1 metric 25 subnets route-map eigrp-to-ospf
  Last update from 10 ”Â;.1
    óÅ;ut
      Total delay is 740 microseconds, minimum bandwidth is 44247 Kbit
      RóÅ;bi
      Loading 95/255, Hops 5

RA#sh in atm1/0.9
ATM1/0.9 is up, line protocol is up
óÅ;rd
0030.b669.ec1c)
  Description: === atm PVC to RB.3Mb === Internet ”Â;es
  Encapsulation ATM
  4816902 póÅ;ts
  4499756 packets output,336826107 bytes
  1230339 OAM cells input, 1230366 OAM cells output
  A ”Â;CR
 
RA#
RA#
RA#sh ip eigrp top ac
IP-EIGRP Topology TabóÅ;or

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - Reply status

A 20.1.1óÅ;2,
    1 replies, active 00:02:49, query-origin: Successor Origin
         via 10.1.1.194 (óÅ;ni
         via 10.1.1.198 (Infinity/Infinity), ATM1/0.3, serno 5749206
         via 10óÅ;.2
==> RB
         via 10.1.1.78 (Infinity/Infinity), ATM1/0.8, serno 5749óÅ;
         via 10.1.1.30 (Infinity/Infini
RA
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.67)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status

A 20.1.1.1/32, 1 successors, FD is Inaccessible
    1 replies, active 00:00:25, query-origin: Successor Origin
         via 10.1.1.238 (Infinity/Infinity), ATM2/0.71
         via 10.1.1.166 (Infinity/Infinity), ATM2/0.52, serno 12357758
         via 10.1.1.242 (Infinity/Infinity), ATM2/0.91, serno 12357760
         via 212.65.33.165 (Infinity/Infinity), ATM2/0.72, serno 12357761
         via 10.1.1.246 (Infinity/Infinity), r, ATM2/0.92, serno 12357759
         via 10.1.1.150 (Infinity/Infinity), ATM2/0.51, serno 12357754

RB#sh ip route 20.1.1.1
Routing entry for 20.1.1.1/32
  Known via "eigrp 1", distance 170, metric 81664, type external
  Redistributing via eigrp 1
  Last update from 10.1.1.238 on ATM2/0.71, 00:00:34 ago
  Routing Descriptor Blocks:
  * 10.1.1.238, from 10.1.1.238, 00:00:34 ago, via ATM2/0.71
      Route metric is 81664, traffic share count is 1
      Total delay is 930 microseconds, minimum bandwidth is 44247 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 95/255, Hops 6

RB#
RB#sh in atm2/0.92
ATM2/0.92 is up, line protocol is up
  Hardware is ENHANCED ATM PA
  Description: === pvc to RD (dlci 54) ===
  Internet address is 10.1.1.245/30
  MTU 4470 bytes, BW 44209 Kbit, DLY 190 usec,
     reliability 255/255, txload 1/255, rxload 5/255
  Encapsulation ATM
  16518379 packets input, 1309947878 bytes
  20636595 packets output,2463282671 bytes
  1096686 OAM cells input, 1096708 OAM cells output
  AAL5 CRC errors : 1
  AAL5 SAR Timeouts : 0
  AAL5 Oversized SDUs : 0
RB#

RD#sh ip eigrp top act
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.181)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - Reply status

A 20.1.1.1/32, 1 successors, FD is Inaccessible
    1 replies, active 00:01:25, query-origin: Successor Origin
         via 10.1.1.245 (Infinity/Infinity), Serial0/0.54
         via 10.1.1.253 (Infinity/Infinity), Serial0/0.53, serno 16665111
         via 10.1.1.29 (Infinity/Infinity), Serial0/0.8, serno 16665109
         via 10.1.1.217 (Infinity/Infinity), Serial0/0.3, serno 16665113
    Remaining replies:
         via 10.1.1.73, r, Serial0/0.51

RD#sh in s0/0.51
Serial0/0.51 is up, line protocol is up
  Hardware is PowerQUICC Serial
  Description: === 1Mb pvc to RE (vc 92) ===
  Internet address is 10.1.1.74/30
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY IETF
RD#sh ip route 95.74.216.238
% Network not in table

RE#sh ip eigrp top act
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.65)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status

A 20.1.1.1/32, 1 successors, FD is Inaccessible
    1 replies, active 00:01:56, query-origin: Multiple Origins, retries(1)
         via 10.1.1.74 (Infinity/Infinity), ATM4/0.92
         via 10.1.1.70 (Infinity/Infinity), ATM4/0.91, serno 11164925
         via 212.65.33.161 (Infinity/Infinity), ATM4/0.72, serno 11164926
         via 10.1.1.41 (Infinity/Infinity), ATM4/0.52, serno 11164924
         via 10.1.1.201 (Infinity/Infinity), ATM4/0.71, serno 11164923
         via 10.1.1.13 (Infinity/Infinity), rs, ATM4/0.51, serno 11165049
RE#sh ip route 20.1.1.1
Routing entry for 20.1.1.1/32
  Known via "eigrp 1", distance 170, metric 2181888, type external
  Redistributing via eigrp 1
  Last update from 10.1.1.74 on ATM4/0.92, 00:02:05 ago
  Routing Descriptor Blocks:
  * 10.1.1.74, from 10.1.1.74, 00:02:05 ago, via ATM4/0.92
      Route metric is 2181888, traffic share count is 1
      Total delay is 20470 microseconds, minimum bandwidth is 1544 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 3/255, Hops 4

RE#sh in atm4/0.51
ATM4/0.51 is up, line protocol is up
  Hardware is ENHANCED ATM PA
  Description: === pvc to RF (vc 51) ===
  Internet address is 10.1.1.14/30
  MTU 4470 bytes, BW 44209 Kbit, DLY 190 usec,
     reliability 255/255, txload 3/255, rxload 14/255
  Encapsulation ATM
  1398663875 packets input, 699290465460 bytes
  1691130801 packets output,208553257189 bytes
  679108 OAM cells input, 679105 OAM cells output
  AAL5 CRC errors : 0
  AAL5 SAR Timeouts : 0
  AAL5 Oversized SDUs : 0
RE#
Oct 2 12:58:28.709: %DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.1.1.13
(ATM4/0.51) is down: stuck in active
Oct 2 12:58:28.773: %DUAL-3-SIA: Route 20.1.1.1/32 stuck-in-active state in
IP-EIGRP 1. Cleaning up
Oct 2 12:58:29.345: %DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.1.1.13
(ATM4/0.51) is up: new adjacency

RF#sh ip eigrp top ac
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.1)
RF#
RF#sh ip eigrp top ac
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - Reply status

A 20.1.1.1/32, 1 successors, FD is Inaccessible
    1 replies, active 00:02:19, query-origin: Successor Origin
         via 10.1.1.14 (Infinity/Infinity), ATM1/1/0.51, serno 12833141
         via 10.1.1.6 (Infinity/Infinity), ATM5/1/0.1, serno 12833148
         via 10.1.1.193 (Infinity/Infinity), r, ATM1/1/0.60, serno 12833147
         via 10.1.1.157 (Infinity/Infinity), ATM1/1/0.53, serno 12833150
         via 10.1.1.149 (Infinity/Infinity), ATM1/1/0.54, serno 12833149
         via 212.65.33.177 (Infinity/Infinity), ATM1/1/0.71, serno 12833151
RF#sh ip route 20.1.1.1
Routing entry for 20.1.1.1/32
  Known via "eigrp 1", distance 170, metric 71936, type external
  Redistributing via eigrp 1, igrp 1
  Last update from 10.1.1.14 on ATM1/1/0.51, 00:02:26 ago
  Routing Descriptor Blocks:
  * 10.1.1.14, from 10.1.1.14, 00:02:26 ago, via ATM1/1/0.51
      Route metric is 71936, traffic share count is 1
      Total delay is 550 microseconds, minimum bandwidth is 44247 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 95/255, Hops 4

RF#sh in atm1/1/0.60
ATM1/1/0.60 is up, line protocol is up
  Hardware is cyBus ENHANCED ATM PA, address is 00d0.bc87.a828 (bia
00d0.bc87.a828)
  Description: === atm PVC5 from RF to RA ===
  Internet address is 10.1.1.194/30
  MTU 4470 bytes, BW 149760 Kbit, DLY 80 usec, rely 255/255, load 96/255
  Encapsulation ATM
  4447296 packets input, 730337537 bytes
  7998288 packets output,2427939136 bytes
  678787 OAM cells input, 678778 OAM cells output
  AAL5 CRC errors : 0
  AAL5 SAR Timeouts : 0
  AAL5 Oversized SDUs : 0

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