WAN/LAN slowness troubleshooting

Unanswered Question
Jun 11th, 2008

Greetings All,

A few questions.

1. How many T1 controller errors per second would it take to affect a WAN link communication. (E.g Line code violations, Path code violation, Errored Sec etc.) If my memory serves me well Cisco states that the "errors" have to be 1% of the total traffic traversing the equipment.

2. What does the "no adjacency" drop count of the "show ip traffic" output mean? I could not find any documentation explaning this.

"show ip traffic

IP statistics:

Rcvd: 10525673 total, 55466 local destination

0 format errors, 0 checksum errors, 6 bad hop count

0 unknown protocol, 0 not a gateway

0 security failures, 0 bad options, 0 with options

Opts: 0 end, 0 nop, 0 basic security, 0 loose source route

0 timestamp, 0 extended security, 0 record route

0 stream ID, 0 strict source route, 0 alert, 0 cipso

0 other

Frags: 9 reassembled, 0 timeouts, 0 couldn't reassemble

16 fragmented, 0 couldn't fragment

Bcast: 18141 received, 22 sent

Mcast: 12175 received, 11409 sent

Sent: 38227 generated, 4819269 forwarded

Drop: 3847 encapsulation failed, 0 unresolved, 5655875 no adjacency

227 no route, 47 unicast RPF, 0 forced drop"

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
amritpatek Tue, 06/17/2008 - 11:02

Doing a "sh ip traffic" the output shows a lot of "no route" counts. See:

Sent: 11242534 generated, 1646732885 forwarded

Drop: 29 encapsulation failed, 0 unresolved, 0 no adjacency

1647152511 no route, 0 unicast RPF, 0 forced drop

As there is a default route in the routing-table there should be no discards due to "no route". The interesting thing is, that the counter "forwarded" is nearly the same and both counters increase nearly at the same rate.

Actions

This Discussion