From: Leigh Harrison (ccileigh@gmail.com)
Date: Thu Dec 15 2005 - 13:30:18 GMT-3
Hi there,
Yes it is normal to have collisions on a hub. Good luck with the exam!
LH
D R wrote:
>Hi All,
>I'm looking at a 2507 (in production network) that has 16 ethernet ports.
>The # of collisions on these hub ports appear high - 14% in the first port,
>24% in the second port, etc.
>Is this behavior "normal" or does this need to be investigated?
>
>TIA
>
>
>2507a1#show hub e 0 6
>Port 6 of 16 is up, link state is up
> 79612280 packets input, 1948747166 bytes
> 0 errors with 11124948 collisions
> (0 FCS, 0 alignment, 0 too long,
> 0 short, 0 runts, 0 late,
> 0 very long, 0 rate mismatches)
> 3 auto partitions, last source address was 0011.431a.315f
> Last clearing of "show hub" counters never
>
>Repeater information (Connected to Ethernet0)
> 3238792950 bytes seen with 35484160 collisions, 0 hub resets
> Version/device ID 0/1 (0/1)
> Repeater config register is 0xC0
> Last clearing of "show hub" counters never
>
>2507a1#show hub e 0 5
>Port 5 of 16 is up, link state is up
> 36786364 packets input, 3374326241 bytes
> 0 errors with 8970977 collisions
> (0 FCS, 0 alignment, 0 too long,
> 0 short, 0 runts, 0 late,
> 0 very long, 0 rate mismatches)
> 0 auto partitions, last source address was 0011.431a.19bf
> Last clearing of "show hub" counters never
>
>Repeater information (Connected to Ethernet0)
> 3238849675 bytes seen with 35484161 collisions, 0 hub resets
> Version/device ID 0/1 (0/1)
> Repeater config register is 0xC0
> Last clearing of "show hub" counters never
>
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