Configuration Guide

Table Of Contents
4.3 L2VSN – Transparent UNI
©2021 Extreme Networks, Inc. All rights reserved
October 2021
34
UNI is an Ethernet port / MLT
Ethernet UNI port / MLT is not VLAN tag aware
Packets with or without a VLAN q-tag are transported into the L2VSN
Untagged control traffic (STP, VLACP, LACP, LLDP, etc) is transparently forwarded
o
VLACP/LACP PDUs are forwarded (VSP 4000/7200/8000: unless configured on UNI port
/ MLT)
o
Flow Control Pause frames remain link local and are not transported
Reverse MAC learning is still used, so can be used with 3 or more end-points
Supported in VSP 7000 release 10.3 with support for SMLT in release 10.4, VSP 4000 release
3.1, VSP 8000 in release 4.2, and VSP 7200 in release 4.2.1
MLT Transparent UNI ports are supported (on VSP 4000/7200/8000 even with LACP)
Transparent UNIs should not be assigned to the same ISID as Switched UNI or CVLAN UNIs
Beginning in the 4.1 release for the VSP 4000, Transparent UNI over SMLT is supported
Transparent UNI cannot be mixed with any other type of UNI
o
You cannot use an ISID assigned to a Transparent UNI with either an C-VLAN UNI or an
Switch UNI
o
Only Transparent UNIs can be assigned to the same ISID