Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
85
Figure 10: NNI – SMLT Triangle B
In reference to switch C, IS-IS cannot be
enabled on the MLT bundle. If you wish to
keep the MLT bundle, from switch C’s
perspective, enable IS-IS on the physical port
to switch A and one of the physical ports to
switch B. This applies when migrating from
SMLT to SPB. If green field, then one should
configure what is shown in figure 2. Please
note that switch C can only be an ERS 8800 or
VSP 9000
Figure 11: NNI –Square A
Figure 12: NNI – Square B
Figure 13: NNI – SLT Square
This diagram illustrates a likely scenario
migrating from SMLT to SPB. The SMLT links
could be made using regular MLT (with only
one Ethernet port) or using SLT. In both cases,
IS-IS should be enabled on the Ethernet port
directly. You cannot enable IS- IS on the MLT
(single port) if it has an SMLT ID. Please note
that the switches can only be ERS 8800 or VSP
9000.