Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 148)

132 Brocade Virtual ADX Server Load Balancing Guide
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Miscellaneous options
2
VIP RHI and high availability topologies
• Hot Standby topology - VIP RHI is only supported on the Brocade Virtual ADX Router (R)
platform. A Hot Standby topology is not supported for the R code base. Therefore, VIP RHI is not
applicable to Hot Standby topologies.
• Symmetric and sym-active topologies - In both symmetric and sym-active topologies, only the
owner of the VIP (the VIP in the active state) will inject the route. In this topology, the Brocade
Virtual ADX will withdraw the VIP route when a VIP transitions from Active to standby state.
Similarly, the Brocade Virtual ADX will inject the VIP route when a VIP transitions from Standby
to Active, if the VIP is healthy at the time of the transition.
Optionally, you can enable a Brocade Virtual ADX to inject a VIP route inside the routing process
regardless of its VIP ownership status. Enter the following command if you want to enable both
Brocade Virtual ADX devices to inject VIP route regardless of its ownership.
Virtual ADX(config)#server rhi-inject-always
Syntax: [no] server rhi-inject-always
Displaying route type
When VIP RHI is enabled for a virtual server, the VIP host route type is shown as "S:Static". The
reason for doing this is the Brocade Virtual ADX can use redistribute static of routing protocols
(OSPF and RIP for IPv4 and OSPFv3 for IPv6) to advertise the VIP host route.
When the network route advertisement is disabled, the Brocade Virtual ADX shows the route's type
as “D(N).”
The following output of the show ip route command is from a Brocade Virtual ADX with VIP RHI
enabled.
.
Virtual ADX#show ip route
Total number of IP routes: 11
Start index: 1 B:BGP D:Connected R:RIP S:Static O:OSPF *:Candidate
default
Destination NetMask Gateway Port Cost Type
1 10.20.1.0 255.255.255.0 0.0.0.0 v2 1 D
2 10.30.0.0 255.255.0.0 10.40.1.101 v1 2 O
3 10.40.1.0 255.255.255.0 0.0.0.0 v1 1 D
4 10.50.1.0 255.255.255.0 0.0.0.0 v4 1 D(N)
5 10.60.1.0 255.255.255.0 0.0.0.0 v3 1 D(N)
6 10.60.1.10 255.255.255.255 10.60.1.10 v3 1 S
7 10.70.1.0 255.255.255.0 0.0.0.0 3/12 1 D(N)
8 10.70.1.10 255.255.255.255 10.70.1.10 3/12 1 S
9 10.80.1.0 255.255.255.0 10.20.1.101 v2 2 O
10 10.90.1.0 255.255.255.0 0.0.0.0 3/12 1 D(N)
11 10.90.1.10 255.255.255.255 10.90.1.10 3/12 1 S