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ZXR10 8900E series Core Switch Product Description

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condition are forwarded according to the route specified by the policy; those that fail to

match are forwarded according to traditional route table.

ZXR10 8900E series realizes ACL-based policy routing.

In addition to policy routing, ZXR10 8900E series also provides policy routing backup

function.

The switch uses Redirect command to realize policy routing function based on ACL. For

one ACL rule, the route can only be redirected to a next-hop address. When this next-hop

address has any problem, the corresponding policy routing will also fail. When the switch

has multiple egresses, policy routing backup (PBR BACKUP) function can be realized by

configuring Redirect to multiple next-hop addresses, so that when the active link is faulty,

the route can be automatically switched to the backup next-hop address.

3.2.2 Ipv6 Routing

ZXR10 8900E supports the following IPv6 unicast route features:

 Support IPv6 neighbor discovery protocol, which realizes the functions of router and

prefix discovery, address resolution, next-hop address determination, neighbor

unreachable test and repeated address test and which can better support the

mobility of nodes.

 Support IPv6 path MTU discovery protocol, which can discover the maximum

transmission unit of the path so as to make sure the message size sent by the node

does not exceed the MTU value of the path.

 Support IPv6 static route.

 Support IPv6-based dynamic routing protocols RIPng, OSPFv3, ISISv6 and BGP4+.

3.2.3 IPv4/IPv6 Transition

ZXR10 8900E provides a number of transitional mechanisms for conversion from Ipv4

network to Ipv6 network, including double stack technology and various tunnel

technologies that are applicable to different environments:

 Support IPv4/IPv6 double protocol stack. Double stack technology can completely

solve the coexistence problem of IPv4/IPv6, but is only effective when the

equipment in the whole network supports double stack. Therefore, it has high

requirement for IPv4 network reform. It should be noted that the double stack

technology is the foundation of all the tunnel mechanisms below.

 Support manually configured IPv6 tunnel. Manual tunnel technology is simple,

mature and stable, but has high management overhead and poor expandability. It is

Zte ZXR10 8900E series User Manual

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