[c-nsp] view oversubscribed ports on Cisco 4500 platform

[Martin T]

Maarten,
port oversubscription map for "WS-X4448-GB-RJ45" is just as you guessed:

* Ports 1, 2, 3, 4, 5,6, 7, 8
* Ports 9, 10, 11, 12, 13, 14, 15, 16
* Ports 17, 18, 19, 20, 21, 22, 23, 24
* Ports 25, 26, 27, 28, 29, 30, 31, 32
* Ports 33, 34, 35, 36, 37, 38, 39, 40
* Ports 41, 42, 43, 44, 45, 46, 47, 48

Source: http://mcaf.ee/t7q4c However, maybe those "show platform
chassis module 6" or "show platform chassis module 5" actually show
port groups if you say each module(even 48xFa ones) have this 6x 1GE
architecture. For example beginning of the "show platform chassis
module 5" output:


StubId              StubType  StubPortId       ConnectorType  PortName
     0                 Astro           0               RJ-45     Fa5/1
     0                 Astro           1               RJ-45     Fa5/2
     0                 Astro           2               RJ-45     Fa5/3
     0                 Astro           3               RJ-45     Fa5/4
     0                 Astro           4               RJ-45     Fa5/6
     0                 Astro           5               RJ-45     Fa5/5
     0                 Astro           6               RJ-45     Fa5/7
     0                 Astro           7               RJ-45     Fa5/8
     1                 Astro           0               RJ-45     Fa5/9
     1                 Astro           1               RJ-45    Fa5/10
     1                 Astro           2               RJ-45    Fa5/11
     1                 Astro           3               RJ-45    Fa5/12
     1                 Astro           4               RJ-45    Fa5/14
     1                 Astro           5               RJ-45    Fa5/13
     1                 Astro           6               RJ-45    Fa5/15
     1                 Astro           7               RJ-45    Fa5/16
     2                 Astro           0               RJ-45    Fa5/17
     2                 Astro           1               RJ-45    Fa5/18
     2                 Astro           2               RJ-45    Fa5/19
     2                 Astro           3               RJ-45    Fa5/20
     2                 Astro           4               RJ-45    Fa5/22
     2                 Astro           5               RJ-45    Fa5/21
     2                 Astro           6               RJ-45    Fa5/23
     2                 Astro           7               RJ-45    Fa5/24
     3                 Astro           0               RJ-45    Fa5/25
     3                 Astro           1               RJ-45    Fa5/26
     3                 Astro           2               RJ-45    Fa5/27
     3                 Astro           3               RJ-45    Fa5/28
     3                 Astro           4               RJ-45    Fa5/30
     3                 Astro           5               RJ-45    Fa5/29
     3                 Astro           6               RJ-45    Fa5/31
     3                 Astro           7               RJ-45    Fa5/32
     4                 Astro           0               RJ-45    Fa5/33
     4                 Astro           1               RJ-45    Fa5/34
     4                 Astro           2               RJ-45    Fa5/35


Should the "StubId" mean "one 1GE connection to backplane"?

regards,
martin

2011/6/29 Maarten Carels <lists at carels.info>:
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> On 29 Jun 2011, at 11:16 , Martin T wrote:
>
>> Maarten,
>> I understand this, but is it possible to view inside the switch, which
>> ports are assigned into which 1GE groups? Or is it just to count 8
>> ports from the firs port of the linecard and so on? :) And for
>> aggregation/server switches in the data center the Cisco 6500 series
>> is probably a better solution?
>
>
> There should be docs somewhere on the cisco site. Don't know if you can ask the switch, I had a lot of 4500's in the past, but now I've changed jobs, and can't access one.
>
> It may be 1-8, 9-16 and so on. That looks reasonable, also if you take a look on the physical board itself (it's almost empty).
>
> There have been some mixed interface cards in the past, they always reflect the architecture of 6 separate connections of 1G to the backplane.
>
> Works fine in the wiring closet, less for datacentre.
>
> The 6500 is better for aggregation / datacentre, but is quite a bit more expensive....
>
> - --maarten
>
>
>
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