HP HSR6800 Configuration Manual page 272

•
If the matching tunnel is unavailable (for example, the tunnel is down or the tunnel's ACL does
not permit the traffic) and is not specified with the disable-fallback keyword, the local PE
continues to match other tunnels. If the tunnel is specified with the disable-fallback keyword,
the local PE stops matching and tunnel selection fails.
IMPORTANT:
Create a tunneling policy before applying it to a VPN instance. Otherwise, the default tunneling
policy is used. The default tunneling policy selects only one tunnel (no load balancing) in this order:
LSP tunnel, CR-LSP tunnel.
To apply a tunneling policy for a VPN instance:
Step
1. Enter system view.
2. Create a tunneling policy
and enter tunneling policy
view.
3. Configure a preferred
tunnel and specify a
tunnel interface for it.
4. Specify the tunnel
selection preference
order and the number of
tunnels for load
balancing.
5. Return to system view.
6. Enter VPN instance view.
7. Enter IPv4 VPN view.
8. Apply the tunnel policy to
the VPN instance.
Command
system-view
tunnel-policy
tunnel-policy-name
preferred-path number
interface tunnel
tunnel-number
[ disable-fallback ]
tunnel select-seq { cr-lsp |
gre | lsp } *
load-balance-number number
quit
ip vpn-instance
vpn-instance-name
ipv4-family
tnl-policy tunnel-policy-name
264
Remarks
N/A
N/A
Optional.
By default, no preferred tunnel is
configured.
In a tunneling policy, you can configure
up to 64 preferred tunnels.
The tunnel interfaces specified for the
preferred tunnels can have the same
destination address and the tunnel
encapsulation type must be MPLS TE.
By default, only one tunnel is selected
(no load balancing) in this order: LSP
tunnel, GRE tunnel, CR-LSP tunnel.
NOTE:
•
A tunnel type closer to the
select-seq keyword has a higher
priority. For example, with the
tunnel select-seq lsp gre
load-balance-number 1
command configured, VPN uses a
GRE tunnel only when no LSP
exists. After an LSP is created, the
VPN uses the LSP tunnel instead.
•
If you specify more than one tunnel
type and the number of tunnels of
a type is less than the specified
number of tunnels for load
balancing, tunnels of different
types may be used.
N/A
N/A
Optional.
By default, only one tunnel is selected
(no load balancing) in this order: LSP
tunnel, GRE tunnel, CR-LSP tunnel.