402
1.
Enable BFD for MPLS.
2.
Create a PW class, and configure BFD for PW connectivity verification in PW class view.
3.
Create the PW, and reference the PW class created in the previous step for the PW.
Whether BFD is used to verify PW connectivity, which encapsulation type is used for the BFD
packets, and which CC type is used are determined by the configurations on both ends of the PW.
•
If both PEs of the PW have configured BFD for the PW and use the same BFD packet
encapsulation type, the PEs use the specified encapsulation type to verify the PW connectivity.
Otherwise, the PEs do not use BFD to verify the PW connectivity.
•
If both PEs have specified the same VCCV CC type, the specified VCCV CC type is used.
Otherwise, the PEs do not use any CC and they cannot establish a BFD session for the PW.
Configuring BFD for an MPLS L2VPN PW
Perform this task to use BFD to verify the connectivity of a static PW or an LDP PW of MPLS L2VPN:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable BFD for MPLS.
mpls bfd enable
By default, BFD for MPLS is
disabled.
3.
Create a PW class and
enter PW class view.
pw-class class-name
By default, no PW class is created.
To use BFD to verify connectivity of
a PW, you must create a PW class
for the PW and configure VCCV
settings in PW class view.
4.
Use BFD to verify PW
connectivity.
vccv
bfd
[
template
template-name
]
By default, BFD is not used to verify
PW connectivity.
5.
Specify the VCCV CC type.
vccv cc router-alert
By default, no VCCV CC type is
specified.
6.
Return to system view.
quit
N/A
7.
Enter cross-connect group
view.
xconnect-group group-name
N/A
8.
Enter cross-connect view.
connection connection-name
N/A
9.
Configure a PW, specify the
created PW class for it, and
enter PW view.
peer
ip-address
pw-id pw-id
[
in-label
label-value
out-label
label-value
]
pw-class
class-name
[
tunnel-policy
tunnel-policy-name
]
By default, no PW is configured.
10.
(Optional.) Configure the
local and remote
discriminators for the BFD
session used to verify PW
connectivity.
bfd discriminator local
local-id
remote
remote-id
By default, no local and remote
discriminators are configured.
Make sure the local discriminator
and remote discriminator
configured on the local PE are the
same as the remote discriminator
and local discriminator configured
on the remote PE, respectively.
11.
(Optional.)
Configure a
backup PW, specify the PW
class for the backup PW,
and enter backup PW view.
backup-peer ip-address
pw-id
pw-id
[
in-label
label-value
out-label
label-value
]
pw-class
class-name
[
tunnel-policy
tunnel-policy-name
]
By default, no backup PW is
configured.
12.
(Optional.) Configure the
local and remote
discriminators for the BFD
bfd discriminator local
local-id
remote
remote-id
By default, no local and remote
discriminators are configured.
Содержание FlexNetwork 5510 HI Series
Страница 9: ...vii Remote support 460 Documentation feedback 460 Index 462 ...
Страница 318: ...309 Request list 0 Retransmit list 0 ...
Страница 363: ...354 Verify that CE 1 and CE 2 can ping each other Details not shown ...
Страница 446: ...437 The MCE has redistributed the OSPF routes of the two VPN instances into the EBGP routing tables of PE 1 ...