Virtual Private LAN Services
Page 762 7750 SR OS Services Guide
Description This command binds the advertisements received with the route target (RT) that matches the
configured list (either the generic or the specified import) to a specific pw-template. If the RT list is
not present the pw-template is used for all of them.
The pw-template-binding applies to both BGP-AD and BGP-VPLS if these features are enabled in the
VPLS.
For BGP VPLS the following additional rules govern the use of PW-template:
• On transmission the settings for the L2-Info extended community in the BGP Update are derived
from the PW-template attributes. If multiple pw-templates (with or without import-rt) are speci-
fied for the same VPLS instance the first pw-template entry will be used.
• On reception the values of the parameters in the L2-Info extended community of the BGP Update
are compared with the settings from the corresponding pw-template. The following steps are
used to determine the local pw-template:
– The RT values are matched to determine the pw-template.
– If multiple pw-templates matches are found from the previous steps, the first configured pw-
template entry will be considered.
– If the values used for Layer 2 MTU or C Flag do not match the PW setup fails.
The tools perform commands can be used to control the application of changes in pw-template for
both BGP-AD and BGP-VPLS.
The no form of the command removes the values from the configuration.
Default none
Parameters policy-id — Specifies an existing policy ID.
Values 1 — 2147483647
split-horizon-group group-name — The specified group-name overrides the split horizon group
template settings.
import-rt ext-comm — Specify communities allowed to be accepted from remote PE neighbors. An
extended BGP community in the type:x:y format. The value x can be an integer or IP address.
The type can be the target or origin. x and y are 16-bit integers.
Values target:{ip-address:comm-val |as-number:ext-comm-val}
ip-address: a.b.c.d
comm-val: 0 — 65535
as-number: 1 — 65535
ext-comm-val: 0 — 4294967295
route-target
Syntax route-target {ext-community|{[export ext-community][import ext-community]}}
no route-target
Context config>service>vpls>bgp-ad
config>service>vpls>bgp
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