Alcatel-Lucent 7710 SR OS Configuration Manual page 105

fib-priority
Syntax fib-priority {high | standard}
Context config>router
Description This command specifies the FIB priority for VPRN.
ignore-icmp-redirect
Syntax [no] ignore-icmp-redirect
Context config>router
Description
This command drops ICMP redirects received on the management interface.
The no form of the command accepts ICMP redirects received on the management interface.
ip-fast-reroute
Syntax [no] ip-fast-reroute
Context config>router
Description This command enables IP Fast-Reroute (FRR) feature on the system.
This feature provides for the use of a Loop-Free Alternate (LFA) backup next-hop for forwarding in-
transit and CPM generated IP packets when the primary next-hop is not available. IP FRR is
supported on IPv4 and IPv6 OSPF/IS-IS prefixes forwarded in the base router instance to a network
IP interface or to an IES SAP interface or spoke interface. It is also supported for VPRN VPN-IPv4
OSPF prefixes and VPN-IPv6 OSPF prefixes forwarded to a VPRN SAP interface or spoke interface.
IP FRR also provides a LFA backup next-hop for the destination prefix of a GRE tunnel used in an
SDP or in VPRN auto-bind.
When any of the following events occurs, IGP instructs in the fast path on the IOMs to enable the
LFA backup next-hop:
a. OSPF/IS-IS interface goes operationally down: physical or local admin shutdown.
b. Timeout of a BFD session to a next-hop when BFD is enabled on the OSPF/IS-IS interface
When the SPF computation determines there is more than one primary next-hop for a prefix, it will
not program any LFA next-hop in RTM. Thus, the IP prefix will resolve to the multiple equal-cost
primary next-hops that provide the required protection.
The no form of this command disables the IP FRR feature on the system
Default
no ip-fast-reroute
7710 SR OS Router Configuration Guide
IP Router Configuration
Page 105