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Community Member

routing issue

Hi,

Has someone else see a routing behavior as seen in the trace route above? any idea why:

1. First why does some hops doesn't have the number at the left? as if this does not count as a hop and a TTL decrement.

2. why should this be happening? at the end the packet arrive to the destination.

regards///

Target IP address: 10.139.1.19

Source address: 10.134.10.1

Numeric display [n]:

Timeout in seconds [3]:

Probe count [3]:

Minimum Time to Live [1]:

Maximum Time to Live [30]:

Port Number [33434]:

Loose, Strict, Record, Timestamp, Verbose[none]:

Type escape sequence to abort.

Tracing the route to 10.139.1.19

1 10.134.250.77 0 msec

10.134.250.73 0 msec

10.134.250.77 0 msec

2 10.134.250.26 0 msec

10.134.250.34 0 msec

10.134.250.26 0 msec

3 10.254.1.97 8 msec

10.254.1.145 0 msec

10.254.1.97 8 msec

4 10.90.3.1 0 msec

10.90.3.17 0 msec

10.90.3.1 0 msec

5 10.90.4.94 26 msec

10.90.4.78 0 msec

10.90.4.94 8 msec

6 10.138.4.5 0 msec 0 msec 0 msec

7 10.138.2.146 8 msec 0 msec 0 msec

8 10.254.7.1 1066 msec 50 msec 42 msec

9 172.16.10.77 42 msec 50 msec 51 msec

10 172.16.10.69 42 msec 41 msec 51 msec

11 172.16.10.66 92 msec 92 msec 93 msec

12 172.16.10.13 92 msec 101 msec 92 msec

13 172.16.101.38 92 msec 101 msec 92 msec

14 172.16.1.194 92 msec 93 msec 92 msec

15 10.139.1.19 101 msec 92 msec 100 msec

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Blue

Re: routing issue

If your phones are not working well do you have QOS on the links to prioritise the Voice related traffic ?

Jon

6 REPLIES
Hall of Fame Super Blue

Re: routing issue

You get multiple entries without an index number where the router has multiple routes to the same destination so it uses both at that hop.

Jon

Community Member

Re: routing issue

thanks Jon,

so this means that this is not a routing loop? is just that packets are going throgh two different routes at this hops.?

Hall of Fame Super Blue

Re: routing issue

Your'e correct. If packets get caught in a routing loop they don't break out of it they just go round and round until the ttl runs out.

Jon

Community Member

Re: routing issue

This behavior is normal?

actually PCs are running well, but the voice (phones are not registering) is not working well. Could this be the reason?

Hall of Fame Super Blue

Re: routing issue

If your phones are not working well do you have QOS on the links to prioritise the Voice related traffic ?

Jon

Community Member

Re: routing issue

I'll check this on.

thanks a lot..

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