Cisco ONS 15454 SDH - Configuring Jumbo Frames

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Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Chapter 26 Configuring IEEE 802.17b Resilient Packet Ring
Configuring Jumbo Frames
To enable and configure the hold-off timer, perform the following procedure, beginning in global
configuration mode:
Configuring Jumbo Frames
You can configure the interface to support jumbo frames. The jumbo setting specifies that the station
support a maximum transfer unit (MTU) of up to 9100 bytes.
Caution For jumbo frame support, you must configure all the stations on the ring to support jumbo frames.
Command Purpose
Step 1
Router(config)# interface rpr-ieee 0
Activates interface configuration mode to
configure the RPR-IEEE interface.
Step 2
Router(config-if)# rpr-ieee protection
sonet holdoff-timer
time [east | west]
Specifies the delay before a protection response is
sent. Values range from 0 to 20, in units of 10
milliseconds. The default is 0.
(Optional) You can also specify the east or west
ringlet.
Caution The number of milliseconds for the
keepalive timer must be higher than the
number of milliseconds for the holdoff
timer.
Caution When using SW-LCAS on the
RPR-IEEE, the addition or deletion of a
SW-LCAS member circuit causes a
traffic hit with a maximum of 50 m/sec.
The holdoff timer requires a value
greater than 5 (50 m/sec) or the
SW-LCAS addition or deletion triggers
a protection response
Step 3
Router(config)# no shut
Enables the RPR-IEEE interface and changes the
mode from the default passthrough.
Step 4
Router(config)# end
Returns to privileged EXEC mode.
Step 5
Router# copy running-config startup-config
(Optional) Saves configuration changes to the
TCC2/TCC2P flash database.