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Author Topic: ERS55xxx - ASIC  (Read 1304 times)

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Offline AVAGO

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ERS55xxx - ASIC
« on: November 12, 2018, 03:58:05 AM »
   I have been looking for information about the ASIC layout on the Avaya ERS55xx ( 10 & 20 )
we are in the process of setting up two switches for a new small server room. It will consist of 2 x 5520 stacked.

Port 1/47 and 2/47 will be an MLT to Client Stack A

Port 1/48 and 2/48 will be an MLT to Client Stack B

on the server stack we have  CSV and CL connections from the servers. to ensure that they are all contained in the ASIC 1 ASIC for the csv and one for the CL.
Below is what is done so far.

Id   Name                 Type     Protocol         PID     Active IVL/SVL Mgmt
---- -------------------- -------- ---------------- ------- ------ ------- ----
1    VLAN #1              Port     None             0x0000  Yes    IVL     Yes
        Port Members: 1/1-2,1/7-34,1/43-48,2/1-2,2/7-34,2/43-48
2    Cluster Link         Port     None             0x0000  Yes    IVL     No
        Port Members: 1/39-42,2/39-42
3    CSV                  Port     None             0x0000  Yes    IVL     No
        Port Members: 1/35-38,2/35-38
4    DMZ-2                Port     None             0x0000  Yes    IVL     No
        Port Members: NONE
5    DMZ                  Port     None             0x0000  Yes    IVL     No
        Port Members: NONE
6    WAN                  Port     None             0x0000  Yes    IVL     No
        Port Members: 1/3-4,2/3-4
7    WAN2                 Port     None             0x0000  Yes    IVL     No
        Port Members: 1/5-6,2/5-6

But I'm not sure if its correct, Any advice or suggestions gratefully received


Offline TankII

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Re: ERS55xxx - ASIC
« Reply #1 on: February 12, 2019, 12:37:35 PM »
ERS 5XXX and ES4XX switch ASICS are grouped, but not group-switched technology.  12 ports each ASIC, with 10 Gig and Cascade ports separate ASICs.  Wire-speed switching on each port forwarding to the backplane, so you won't overrun the port buffers if QOS is set correctly.

I would recommend setting your QOS as follows:
qos agent buffer large
qos agent queue-set 2

The 5600 can run lossless, the 5520 cannot.
Two queues will allow you to add another QOS service in the future - say Video or Voice.  When you do that, you will need to create a QOS interface group that is 'trusted' so all DSCP markings are passed transparently.
qos if-group name AV class trusted   
qos if-assign-list add portlist 1/1-1/38,2/35-2/38 name AV


Offline Paul L

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Re: ERS55xxx - ASIC
« Reply #2 on: February 22, 2019, 03:38:52 PM »
ACSS- Avaya Enterprise Routing Switch  #8

Offline novice

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Re: ERS55xxx - ASIC
« Reply #3 on: April 17, 2019, 12:01:57 PM »
5510 or 5520 shouldn't be used for CL or CSV traffic because if you have multiple server NIC connected and they start pushing virtual machines around. There will be some packet drops.
BTW the connections from Hyper-v servers should be LACP to the switch and not as individual connection because it will help load balancing the traffic across each of the ports within aggregated link.
Moreover AFAIK 5510,5520 can only load balance on MAC or IP address.