Alcatel-Lucent 7750 SR OS Service Manual page 970

Service router - mobile gateway

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Table of Contents

VPRN Service Configuration Commands

tag — Adds a 32-bit integer tag to the static route. The tag is used in route policies to control

distribution of the route into other protocols.

bfd-enable — Associates the state of the static route to a BFD session between the local system and

type [hub |subscriber-split-horizon]

config>service>vprn>

This command designates the type of VPRN instance being configured for hub and spoke topologies.

Use the no form to reset to the default of a fully meshed VPRN.

hub — Specifies a hub VPRN which allows all traffic from the hub SAPs to be routed to the

destination directly, while all traffic from spoke VPRNs or network interfaces can only be routed to a

subscriber-split-horizon — Controls the flow of traffic for wholesale subscriber applications.

vrf-export policy [policy...]

no vrf-export

config>service>vprn

This command specifies the export policies to control routes exported from the local VPN routing/

forwarding (VRF) to other VRFs on the same or remote PE routers (via MP-BGP).

The no form of the command removes all route policy names from the export list.

None — No routes are exported from the VRF by default.

policy — The route policy statement name.

to determine the static route to install in the forwarding table: When modifying the metrices of an

existing static route, unless specified, the preference will not change.

If there are multiple static routes with the same preference but unequal metrices, the lower cost

(metric) route is installed. If there are multiple static routes with equal preference and metrics

then ECMP rules apply. If there are multiple routes with unequal preferences, then the lower

preference route is installed.

the configured nexthop. This keyword cannot be configured if the nexthop is indirect or a

blackhole keywords are specified.

7750 SR OS Services Guide