Protect Command (Frame Relay Vc-Bundle-Member) - Cisco 10000 Series Configuration Manual

Frame Relay PVC Selection
Defaults
Precedence levels are not configured.
Configuration Mode
Frame Relay VC-bundle-member configuration
Usage Guidelines for the precedence Command
Assignment of precedence levels to PVC bundle members allows you to create differentiated service
because you can distribute the IP precedence levels over the various PVC bundle members. You can map
a single precedence level or a range of levels to each discrete PVC in the bundle, thereby enabling PVCs
in the bundle to carry packets marked with different precedence levels. Use the precedence other
command to indicate that a PVC can carry traffic marked with precedence levels not specifically
configured for other PVCs. Only one PVC in the bundle can be configured using the precedence other
command.
This command is available only when the match type for the PVC bundle is set to precedence using the
match precedence command in Frame Relay VC-bundle configuration mode.
You can overwrite the precedence level configuration on a PVC by re-entering the precedence command
with a new level value.
All precedence levels must be accounted for in the PVC bundle configuration, or the bundle does not
come up. Note, however, that a PVC may be a bundle member but have no precedence level associated
with it. As long as all valid precedence levels are handled by other PVCs in the bundle, the bundle can
come up, but the PVC that has no precedence level configured does not participate in it.
A precedence level can be configured on one PVC bundle member per bundle. If you configure the same
precedence level on more than one PVC within a bundle, the following message appears on the console:
%Overlapping precedence levels
When tag-switching is enabled on the interface by using the tag-switching ip command, MPLS and IP
packets can flow across the interface, and PVC bundles that are configured for IP precedence mapping
are converted to MPLS EXP mapping. The PVC bundle functionality remains the same with respect to
priority levels, bumping, and so on, but the match precedence command is replaced by the match exp
command, and each precedence command is replaced by the exp command. The result is that a
bundle-member PVC previously configured to carry precedence level 1 IP traffic now carries EXP
level 1 MPLS traffic.
When tag-switching is disabled, the match precedence and match dscp commands are restored, and the
exp commands are replaced by precedence commands.
When tag-switching is enabled or disabled, PVC bundles configured for IP precedence mapping or
MPLS EXP mapping stay up, and traffic is transmitted over the appropriate bundle-member PVCs.

protect Command (Frame Relay VC-bundle-member)

To configure a Frame Relay protected permanent virtual circuit (PVC) bundle member with protected
group or protected PVC status, use the protect command in Frame Relay VC-bundle-member
configuration mode. To remove the protected status from the PVC, use the no form of the command.
protect {group | vc}
no protect {group | vc}
Cisco 10000 Series Router Quality of Service Configuration Guide
19-38
Chapter 19 Configuring Quality of Service for PVC Bundles
OL-7433-09