Ethernet Module Features - Avaya Virtual Services Platform 9000 Series Configuration Manual

Ethernet module fundamentals
size is 1518 bytes. For tagged frames, the maximum standard size increases by 4 bytes to
1522 bytes.
The default maximum Ethernet frame size supported by the Virtual Services Platform 9000 is
1950 bytes. The 10 Gbit/s module (9024XL) also supports this frame size. To support a jumbo
frame system, configure the CP MTU to 9600 bytes. Interface ports cannot pass jumbo frames
by default.
If a jumbo frame enters on an interface and is destined to egress a chassis interface that does
not support jumbo frames, the system gracefully drops it.
If a port on a Gigabit Ethernet module receives a packet bigger than the configured system
MTU size, the MAC chip increments the byte counter with the MTU size instead of the actual
packet size, which will reflect in the statistics of that port.
MLT and Link Aggregation Control Protocol groups port speed
Avaya recommends that all ports that belong to the same MLT group or Link Aggregation
Control Protocol (LACP) group use the same port speed, for example, 1 Gbit/s, even if you
use Autonegotiation. In the case of MLTs, the software does not enforce this requirement.
Virtual Router Forwarding for Ethernet modules
You can use Virtual Router Forwarding (VRF) to have the Virtual Services Platform 9000 act
as multiple virtual routers.
You can configure each VRF instance as a separate router; this means that you can configure
different routing protocols and associated parameters for each instance. You can associate
non—zero VRF instances with module ports.
The Ethernet parameters (such as: Autonegotiate; AdminDuplex; AdminSpeed) that a user
can edit for a VRF instance depends on whether the port belongs to only one, or more than
one, VRF instance. For example, if a port belongs to only one VRF, you can edit the Ethernet
parameters of the VRF. If a port belongs to more than one VRF instance, you cannot edit the
Ethernet parameters of the VRF instance; you can only edit the GlobalRouter port parameters.
If a port belongs to a single non—zero VRF, this VRF can change the port Ethernet parameters;
if a port belongs to multiple VRF instances, then only the Global Router can change this port
configuration.

Ethernet module features

This section details the features of the Virtual Services Platform 9000 Ethernet modules.
The following table shows supported Ethernet modules you can use to provide Ethernet
services using the Virtual Services Platform 9000.
Table 2: Ethernet modules
Module
9024XL
12 Configuration — Ethernet Modules
24 port 10 Gb/s small form-factor pluggable plus (SFP+) Ethernet
interface module. The 9024XL module also supports 1 Gb/s SFP
Module description
June 2011