[j-nsp] static load-balancing route in a routing-instance
Jens Brenner
jjbrennzz at googlemail.com
Wed Apr 7 06:45:24 EDT 2010
Hello,
I'm trying to build a flow-based load-balancing static route in a forwarding
routing-instance with JunOS 9.3R4.4 on a M10i.
I've tried just adding multiple next-hops to the route, but that
doesn't work since
there's no "set forwarding-options export" in the routing-instance tree to make
JunOS export all the next-hops into the PFE. There is however a
set forwarding-options load-balance with the 3 parameters indexed-next-hop,
per-flow and per-prefix.
Would the following config excerpt do what I want?
routing-instances {
test {
instance-type forwarding;
routing-options {
static {
route 0.0.0.0/0 next-hop [ 1.2.3.1 1.2.3.2 1.2.3.3 ];
}
}
forwarding-options {
load-balance {
indexed-next-hop;
per-flow {
hash-seed;
}
}
}
}
}
The JunOS docs say I should be able to configure the per-flow
hash-seed as a number but the cli seems to disagree
"Beginning with JUNOS Release 9.3, you can enable router-specific
load balancing by configuring a unique, load balance hash value for
each PFE slot. [...]
To enable per-flow load balancing, you must include the hash-seed
number statement. The range that you can configure is 0 through
65,535. 0 is the default value; if no hash seed is configured, the
elected forwarding next hop would be the same as in previous
releases."
jb at cf2-re0# set routing-instances test forwarding-options load-balance
per-flow hash-seed 123
^
syntax error.
Thanks in advance, Jens
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