R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

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Figure 41 Network diagram
As shown in Figure 41, the base topology is split into two topologies, topology A and topology B. You
can forward voice traffic through topology A and video traffic through topology B.
Router B does not belong to topology A. In topology B, the links between Router A and Router D and the
links between Router B and Router C do not exist. Route calculation and traffic forwarding are performed
in each topology independently.
Configuration prerequisites
Before you configure IPv4 IS-IS MTR, complete the following tasks:
• Configure basic IS-IS to establish IS-IS neighbor relationships.
• Configure MTR. For more information, see "Configuring MTR."
Configuration procedure
To configure IS-IS MTR:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. Specify an IS-IS cost
style.
cost-style { wide | wide-compatible |
compatible }
By default, IS-IS only transmits and
receives packets using the narrow
cost style.
4. Enter IPv4 address
family view.
address-family ipv4 [ unicast ] N/A
5. Configure IS-IS MTR.
topology topo-name tid tid
By default, IS-IS does not support
any IPv4 unicast topology.
6. Return to system view.
quit N/A
7. Enter interface view.
interface interface-type interface-number N/A
8. Enter IPv4 unicast
topology view.
topology ipv4 [ unicast ] topo-name N/A