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The no form of the command disables ECMP path sharing. If ECMP is disabled and multiple routes
are available at the best preference and equal cost, then the route with the lowest next-hop IP address
is used.
no ecmp
Default
max-ecmp-routes — The maximum number of equal cost routes allowed on this routing table
Parameters
fib-priority
fib-priority {high | standard}
Syntax
config>router
Context
This command specifies the FIB priority for VPRN.
Description
ignore-icmp-redirect
[no] ignore-icmp-redirect
Syntax
config>router
Context
This command drops ICMP redirects received on the management interface.
Description
The no form of the command accepts ICMP redirects received on the management interface.
ip-fast-reroute
[no] ip-fast-reroute
Syntax
config>router
Context
This command enables IP Fast-Reroute (FRR) feature on the system.
Description
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.
7450 ESS OS Router Configuration Guide
instance, expressed as a decimal integer. Setting ECMP max-ecmp-routes to 1 yields the same
result as entering no ecmp.
0 — 32
Values
IP Router Configuration
Page 101
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