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Author Topic: ERS switch buffers  (Read 2109 times)

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Offline JonathanP

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ERS switch buffers
« on: July 04, 2015, 05:11:12 AM »
Can someone tell me how the buffers are split between ports on the following switches
5510-48
5520-48PWR
4524GT

I know on the 55xx switches there is one buffer per group of 12 ports but how are the ports grouped? Is it literally 1-12,13-24 etc? What about the 4524, does that have the same 12 port buffers?


Offline Telair

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Re: ERS switch buffers
« Reply #1 on: July 05, 2015, 09:18:07 PM »
Yes, as far as I know the buffers on 5500's are grouped 1-12, 13-24, 25-36, 37-48.  On 5600's I believe it is grouped 1-24, 25-48, etc...  5600's can also operate in "lossless mode" for passing iSCSI traffic.  You can also change the buffer settings on 5500's via the QoS subsystem if required.  I don't have any information on 4500's, sorry.  If this is for connecting storage arrays the following document may be helpful to you.

http://support.avaya.com/css/P8/documents/100123892

Offline Dominik

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Re: ERS switch buffers
« Reply #2 on: July 06, 2015, 04:25:26 AM »
I am not aware of any document where you can find a discription on the buffers of the ER4xxx platform as the iSCSI guide shows it for the ERS%k series.

There is the same buffer configuration available on the ERS4k platform:
ERS4000(config)#qos agent buffer ?
  large    Medium amount of resource sharing
  maximum  Maximum amount of resource sharing
  regular  Minimum amount of resource sharing

So i suggest that it is working similar to the ERS5k switches.

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Offline ijdod

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Re: ERS switch buffers
« Reply #3 on: July 10, 2015, 06:40:01 AM »
I've also found that browsing through the documentation from older software releases can help as well, the amount of information given varies per release. It never because very clear, though. One of the points Avaya can definitely improve on...