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• Example

host1(config-router)#network 10.53.42.0 backdoor

• Use the no version to restore the default distance to the EBGP route, 20.

• See network.

Setting the Maximum Number of Equal-Cost Multipaths

You can use the maximum-paths command to specify the number of equal-cost paths

to the same destination that BGP can submit to the IP routing table.

If you set the value to 1, the router installs the single best route in the IP routing table. If

you set the value greater than 1, the router installs that number of parallel routes.

maximum-paths

• Use to set the maximum number of equal-cost multipaths.

• Specify a value in the range 1–16; the default value is 1.

• If you do not specify a keyword, the maximum number applies only to routes learned

from external peers. If you specify the ibgp keyword, the maximum number applies

only to routes received from internal peers. If you specify the eibgp keyword (valid only

for VRF IPv4 unicast or IPv6 unicast address families), the maximum number applies

to routes received from internal peers and external peers.

• This command takes effect immediately; it does not bounce the session.

• You can specify the maximum number of equal-cost multipaths in the context of the

virtual router, an IPv4 unicast or IPv6 unicast address family, or a VRF specified in the

context of an IPv4 unicast or IPv6 unicast address family.

• This command is not supported for VPNv4 or VPNv6 address families.

• Example 1

host1(config-router)#maximum-paths 3

• Example 2

host1:vr1(config-router-af)#maximum-paths ibgp 5

• Use the no version to restore the default value, 1.

• See maximum-paths.

Detecting Peer Reachability with BFD

You can configure a Bidirectional Forwarding Detection (BFD) session with a BGP neighbor

or peer group to determine relatively quickly whether the neighbor or peer group is

reachable. For more information on BFD, see JunosE IP Services Configuration Guide. BFD

is supported only for single-hop IBGP and EBGP sessions with either IPv4 or IPv6 neighbors

in the core or within a VRF. BFD is not supported for multi-hop BGP sessions (IBGP

multi-hop or EBGP multi-hop). BFD behavior is identical for IBGP and EBGP single-hop

sessions, and for IPv4 and IPv6 neighbors.

JunosE 11.2.x BGP and MPLS Configuration Guide

Juniper JUNOSE 11.2.X BGP AND MPLS User Manual

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