Extreme Networks ExtremeWare XOS 11.3, Manual

Page: 111 / 698

Configuring Ports on a Switch
ExtremeWare XOS 11.3 Concepts Guide
111
When you issue any
slot
commands specifying a slot that contains an MSM (slot 5 with one MSM and
slots 5 and 6 with two MSMs) on the BlackDiamond 8810 switch, those commands affect only the data
ports on that slot; the MSMs remain unaffected. When you issue most
msm
commands on this switch,
those commands affect only the MSM host CPU subsystem; the I/O ports remain unaffected. The sole
exception is that the
reboot msm
command reboots both the MSM and the I/O ports on that module.
If you are working on a switch with dual MSMs and the system fails over to the backup MSM from the
primary MSM, the I/O ports on the original primary MSM are not available during the failover period.
It takes about 2 minutes for the I/O ports on the original MSM to be able to pass traffic once again.
I/O Ports on BlackDiamond 8806 MSM Module
NOTE
You must have at least one MSM in the BlackDiamond 8806 switch.
On the BlackDiamond 8806 switch, the MSM module also has eight 1 Gbps fiber SFP GBIC data, or I/O,
ports. You configure these ports exactly as you do any other ports on the switch.
Additionally, one slot on the BlackDiamond 8806 switch is dedicated to MSM use—slot A, or slot 3. Slot
B, or slot 4, is a dual-purpose slot; it can be used for a secondary MSM or for a module consisting solely
of data, or I/O, ports.
The primary MSM must be in slot A in the BlackDiamond 8806 switch, which is referred to as slot 3
when working with the data ports. If you have a secondary MSM, that one goes into slot B, which is
slot 4 when you work with the data ports. So, when you work with the data ports on the MSM, you
specify slot 3 if you have one MSM, and slot 3 or 4 if you have two MSMs in the switch.
When you issue any
slot
commands specifying a slot that contains an MSM (slot 3 with one MSM and
slots 3 and 4 with two MSMs) on the BlackDiamond 8806 switch, those commands affect only the data
ports on that slot; the MSMs remain unaffected. When you issue most
msm
commands on this switch,
those commands affect only the MSM host CPU subsystem; the I/O ports remain unaffected. The sole
exception is that the
reboot msm
command reboots both the MSM and the I/O ports on that module.
If you are working on a switch with dual MSMs and the system fails over to the backup MSM from the
primary MSM, the I/O ports on the original primary MSM are not available during the failover period.
It takes about 2 minutes for the I/O ports on the original MSM to be able to pass traffic once again.
Configuring Ports on a Switch
NOTE
Beginning with ExtremeWare XOS version 11.2, a port can belong to multiple virtual routers (VRs). See Chapter 10
for more information on VRs.
This section covers the following topics of configuring ports on a switch:
●
Port Numbering on page 112
●
Enabling and Disabling Switch Ports on page 113