Cisco 15327 - Manual (Page 443)

26-11
Ethernet Card Software Feature and Configuration Guide, R7.2
Chapter 26 Configuring IEEE 802.17b Resilient Packet Ring
Configuring Forced or Manual Switching
To enable and configure Jumbo frames, perform the following procedure, beginning in global
configuration mode:
Configuring Forced or Manual Switching
You can request certain protection states to take effect manually on either span of the interface to avoid
link usage or in anticipation of failures.
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 pref
jumbo
Enables jumbo frame capability on the RPR-IEEE
interface:
jumbo—Enables handling of frames in excess of
the standard size, up to a maximum size of 9100
bytes. A jumbo-enabled station changes the
interface MTU to 9100 bytes if all stations in the
ring are jumbo enabled. A message is generated to
indicate that the ring supports jumbo frames when
all stations are configured for this preference.
The default is to not support jumbo frames.
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.