Cisco Catalyst 6807-XL User Manual

Combined Mode (n+0)Redundant Mode (n+1)
All available PSMs operate at 100
percent capacity.
With two PSMs (1+1):
•
One PSM operates at 100 percent capacity.
•
The +1 redundant PSM operates at 0
percent of its capacity.
With three PSMs (2+1):
•
One PSM operates at 100 percent capacity.
•
One PSM operates at 90 percent of its
capacity.
•
The +1 redundant PSM operates at 0
percent of its capacity.
With four PSMs (3+1):
•
One PSM operates at 100 percent capacity.
•
Two PSMs operate at 90 percent of their
capacity (90 percent each).
•
The +1 redundant PSM operates at 0
percent of its capacity.
Operating
capacity
There is no redundant power supply in
this mode. The PSMs that are still
operational continue to work. If they are
not able to handle the load, the necessary
number of modules are shut down. The
number of modules that will be shut
down depends on the amount of
combined power the operational PSMs
are able to provide.
For example, if you have installed two
PSMs, they supply 6000 W, which can
power a fully loaded chassis. But if one
PSM fails, the power provided drops
down to 3000 W, which causes some
modules to shut down.
The +1 redundant PSM takes over and operates
at 90 percent capacity.
In case of
failure
Although available, we recommend that
you do not use this mode. If you are
implementing this mode, we recommend
at least two PSMs (2+0) operating in the
combined mode.
This is the recommended and default mode.
If you have a fully loaded chassis, we
recommend that you install at least three PSMs
operating in a redundant mode (2+1).
Recommendation
3
Total number of operational PSMs
Cisco Catalyst 6807-XL Switch Hardware Installation Guide
6 OL-30656-01
Product Overview
Power Supply Module

Cisco Catalyst 6807-XL Specifications

General

Brand	Cisco
Model	Catalyst 6807-XL
Category	Switch
Language	English