Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 414)

364 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
ERPS Commands
19
Command Usage
In order to coordinate timing of protection switches at multiple layers, a hold-off timer may be
required. Its purpose is to allow, for example, a server layer protection switch to have a chance to fix
the problem before switching at a client layer.
When a new defect or more severe defect occurs (new Signal Failure), this event will not be
reported immediately to the protection switching mechanism if the provisioned hold-off timer value
is non-zero. Instead, the hold-off timer will be started. When the timer expires, whether a defect still
exists or not, the timer will be checked. If one does exist, that defect will be reported to the
protection switching mechanism. The reported defect need not be the same one that started the
timer.
Example
Console(config-erps)#holdoff-timer 300
Console(config-erps)#
major-domain
This command specifies the ERPS ring used for sending control packets. Use the no form to remove
the current setting.
Syntax
major-domain name
no major-domain
name - Name of the ERPS ring used for sending control packets. (Range: 1-32 characters)
Default Setting
None
Command Mode
ERPS Configuration
Command Usage
• This switch can support up to two rings. However, ERPS control packets can only be sent on
one ring. This command is used to indicate that the current ring is a secondary ring, and to
specify the major ring which will be used to send ERPS control packets.
• The Ring Protection Link (RPL) is the west port and can not be configured. So the physical port
on a secondary ring must be the west port. In other words, if a domain has two physical ring
ports, this ring can only be a major ring, not a secondary ring (or sub-domain) which can have
only one physical ring port. This command will therefore fail if the east port is already
configured (see the
ring-port command).
Example
Console(config-erps)#major-domain rd0
Console(config-erps)#