R2511-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V5)

330
Ste
p
Command Remarks
11. Specify the maximum
number of equal-cost load
balanced routes.
ipv6 maximum load-balancing number Optional.
NOTE:
The ipv6 filter-policy export command is usually used in combination with the ipv6 import-route
command. If no protocol is specified for the ipv6 filter-policy export command, routes redistributed from
all routin
g
protocols are filtered before advertisement. If a protocol is specified, only routes redistributed
from the routing protocol are filtered for advertisement.
Configuring BFD for IPv6 IS-IS
Bidirectional forwarding detection (BFD) can quickly detect faults between IPv6 IS-IS neighbors to
improve the convergence speed of IPv6 IS-IS.
For more information about BFD, see High Availability Configuration Guide.
To configure BFD for IPv6 IS-IS:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enable an IS-IS process and
enter IS-IS view.
isis [ process-id ] N/A
3. Configure the NET for the IS-IS
process.
network-entity net Not configured by default.
4. Enable IPv6 for the IS-IS
process.
ipv6 enable Disabled by default.
5. Return to system view.
quit N/A
6. Enter interface view.
interface interface-type
interface-number
N/A
7. Enable IPv6 for an IS-IS
process on the interface.
isis ipv6 enable [ process-id ] Disabled by default.
8. Enable BFD for IPv6 IS-IS.
isis ipv6 bfd enable Not enabled by default.
Configuring IPv6 IS-IS MTR
On a network comprising both IPv4 and IPv6 topologies, the IPv4 and IPv6 topologies must be consistent
so that both IPv6 IS-IS and IPv4 IS-IS can use the SPF algorithm to perform route calculation. If they are
different, routers supporting both IPv4 and IPv6 send IPv6 packets to routers that do not support IPv6,
and thus packet loss occurs.
To resolve this issue, configure IPv6 IS-IS Multi-Topology Routing (MTR) to perform route calculation
separately in IPv4 and IPv6 topologies.