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IMPLEMENTATION GUIDE -6rd Configuration Guide
7.8 6rd Anycast (Redundancy)
The 6rd anycast feature is used to configure multiple S-PICs to back up a 6rd domain's traffic. However, for a given
6rd domain, only one S-PIC is actively processing the traffic at any point in time (called primary PIC). Other PICs are
in standby mode, but these standby S-PICs can actively process 6rd traffic of some other 6rd domains (possibly
provide other services such as NAT, etc). When the primary S-PIC goes down for some reason, traffic is immediately
routed to one of the standby S-PICs. When 6rd anycast is configured, multiple routes are installed for the 6rd softwire
concentrator address and v6rd domain prefix, each pointing to different S-PIC. The following subsections show
configuration details where 6rd domains D1 and D3 are hosted on two S-PICs, sp-3/0/0 and sp-3/1/0.
7.8.1 Interfaces Configuration
D1 and D3 Ingress interface:
ge-1/2/0 {
unit 0 {
}
}
Egress Interface (IPv6 Internet):
ge-1/2/2 {
unit 0 {
family inet6 {
}
}
Services PIC:
sp-3/0/0 {
unit 0 {
}
}
18
family inet {
service {
input {
service-set v6rd-dom1-dom3-service-set;
}
output {
service-set v6rd-dom1-dom3-service-set;
}
}
address 10.10.10.1/24;
address 160.160.160.1/24;
}
family inet6;
address 3ABC::1/16;
}
family inet;
family inet6;
Copyright © 2011, Juniper Networks, Inc.
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