Policy-based routing (ipv6), Configuration considerations, Chapter 19 – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual
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Multi-Service IronWare Routing Configuration Guide
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Chapter
19
Policy-Based Routing (IPv6)
displays the individual Brocade devices and the IPv6 Policy-Based Routing features they
support.
IPv6 Policy-Based Routing (IPv6 PBR) allows you to manually configure how IPv6 packets that
match certain criteria can be forwarded instead of following the IPv6 Routing Table Manager (RTM)
routes. ACLs and route maps are used to selectively modify and route IP packets in hardware. The
ACLs classify the traffic. Route maps that match on the ACLs set routing attributes for the traffic.
An IPv6 PBR policy specifies the next hop for traffic that matches the policy. With IPv6 ACLs, you
can route IPv6 packets based on all of the match criteria in the IPv6 ACL.
You can configure the Brocade device to perform the following types of PBR:
•
Select the next hop gateway.
•
Send the packet to the null interface (Null0).
When an IPv6 PBR policy has multiple next hops to a destination, PBR selects the first live next hop
specified in the policy that is up. If none of the policy's next hops is available, the packets are
forwarded as per the routing table.
Configuration considerations
The configuration considerations are as follows:
•
IPv6 PBR cannot be applied globally. IPv6 PBR can only be applied at the interface level.
•
IPv6 PBR only supports default VRF. Multi-VRF is not supported.
•
IPv6 PBR currently does not support the changing IPv4/IPv6 MTU.
TABLE 166
Supported Brocade IPv6 Policy-Based Routing features
Features
supported
Brocade
NetIron XMR
Series
Brocade
MLX Series
Brocade
NetIron CES
2000 Series
BASE
package
Brocade
NetIron CES
2000 Series
ME_PREM
package
Brocade
NetIron CES
2000 Series
L3_PREM
package
Brocade
NetIron CER
2000 Series
Base
package
Brocade
NetIron CER
2000 Series
Advanced
Services
package
IPv6 Policy-Based
Routing (PBR)
Yes
Yes
No
Yes
Yes
Yes
Yes
Policy-Based
Routing (PBR)
with Preserve
VLAN option
Yes
Yes
No
No
No
No
No
Policy-based
routing support
for preserve VLAN
Yes
Yes
No
No
No
No
No