Specifications

exp
MP-75
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Usage Guidelines Assignment of MPLS EXP levels to Frame Relay PVC bundle members lets you create differentiated
services, because you can distribute the levels over the various PVC bundle members. You can map a
single level or a range of levels to each discrete PVC in the bundle, which enables PVCs in the bundle
to carry packets marked with different levels.
Use the exp o
ther command to indicate that a PVC can carry traffic marked with EXP levels not
specifically configured for other PVCs. Only one PVC in the bundle can be configured using the exp
other command.
All EXP levels must be accounted for in the PVC bundle configuration, or the bundle will not come up.
Ho
wever, a PVC can be a bundle member but have no EXP level associated with it. As long as all valid
EXP levels are handled by other PVCs in the bundle, the bundle can come up, but the PVC that has no
EXP level configured will not participate in it.
The ex
p command is available only when MPLS is configured on the interface with the mpls ip
command.
You can overwrite the EXP level configuration on a PVC by reentering
the exp command with a new
value.
The MPLS experimental bits are a bit-by-bit copy of the IP precedence bits. When Frame Relay PVC
b
undles are configured for IP precedence and MPLS is enabled, the precedence command is replaced
by the exp command. When MPLS is disabled, the exp command is replaced by the precedence
command.
Examples The following example shows the configuration of four Frame Relay PVC bundle members in PVC
b
undle bundle1 configured with MPLS EXP level support:
interface serial 0.1 point-to-point
encapsulation frame-relay
ip address 10.1.1.1
mpls ip
frame-relay vc-bundle bundle1
pvc 100 ny-control
class control
exp 7
protect vc
pvc 101 ny-premium
class premium
exp 6-5
protect group
no bump traffic
bump explicit 7
pvc 102 my-priority
class priority
exp 4-2
protect group
pvc 103 ny-basic
class basic
exp other
protect group
Related Commands Command Description
bump Configures the bumping rules for a specific PVC member of a bundle.
class Associates a map class with a specified DLCI.