Users Guide

Re-balance the FC sessions
Re-balances the FC sessions across FC uplinks.
Syntax
re-balance fc npg sessions vfabric vfabric-id [dry-run][brief]
Parameters None
Default Not configured
Command Mode EXEC
Usage
Information
Triggers the load-balancing mechanism to redistribute the sessions across the FC uplinks.
The dry-run option displays the current state of the system, sessions that are cleared, and the system state after the load
balancing is done without actually doing it. You can use the brief option (both in dry run and actual run) to view only the
session redistribution information.
You can configure fcoe delay fcf-adv timer that is based on the switch configuration to balance the system during
reload. Even if the system is unbalanced after reload, you can use this command in the switch to balance the sessions, within
the uplinks.
This command is supported in the NPG mode.
The following table lists the fields and descriptions that are displayed in this command:
Table 66. Fields and Descriptions
Fields Description
Uplink Intf The name of the FC uplink interface
FLOGI Number of Fabric Login Sessions in the FC uplink interface
FDISC Number of Fabric Discovery Sessions in the FC uplink interface
Load Total number of sessions (FLOGI and FDISC) in the FC uplink interface
Speed Link speed of the FC uplink interface
Excess Load Excess load is the absolute (Current load on the link - ((Minimum load per 8G speed in current
state) * port-speed/8G)). It captures the level to which the corresponding link is oversubscribed
when compared to other FC upstream links in the system.
Node WWPN World-Wide Port Name is used for the Fabric Login Request of the Server that is connected to the
OS10 switch. It can be an FCoE server or an FC server.
From Uplink Intf Interface name of the FC uplink from which the sessions from the server are redistributed.
To Uplink Intf Interface name of the FC uplink to which the sessions are mapped when the server logins.
No. of sessions Count of redistributed sessions.
Example
OS10#re-balance npg sessions vfabric 100 dry-run
Fabric Id 100 Current State
Uplink FLOGI FDISC Load Speed Excess
Intf (Gbps) Load
----------------------------------------------------------------
Fc 1/1/1 1 9 10 8 7
Fc 1/1/2 3 3 6 16 0
----------------------------------------------------------------
4 12 16 24 7
----------------------------------------------------------------
Session Displacements:
Total No. of Node(s) : 4
No. of Node(s) displaced : 4
-----------------------------------------------------------------------------------------
Node WWPN From Uplink Intf To Uplink Intf No.of sessions
-----------------------------------------------------------------------------------------
20:01:d4:ae:52:1a:ee:54 Fc 1/1/1 Fc 1/1/2 10
500 Fibre Channel