Changing Precedence For Spanning-Tree Bpdu Packets; Applying A Vpls Filter To An Interface; Applying A Vpls Filter To A Vpls Routing Instance - Juniper EX9200 Features Manual

VPLS Feature Guide for EX9200 Switches
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filter input filter-name;

Changing Precedence for Spanning-Tree BPDU Packets

Spanning tree BPDU packets are automatically set to a high precedence. The queue
number on these packets is set to 3. On M Series routers (except the M320 router) by
default, a queue value of 3 indicates high precedence. To enable this higher precedence
on BPDU packets, an instance-specific BPDU precedence filter named
is automatically attached to the VPLS DMAC table. This filter places a high precedence
on all packets sent to
01:80:c2:00:00:00/24
You can overwrite this filter by configuring a VPLS FTF filter and applying it to the VPLS
routing instance. For more information, see
"Applying a VPLS Filter to a VPLS Routing Instance" on page

Applying a VPLS Filter to an Interface

To apply a VPLS filter to an interface, include the
filter {
group index;
input input-filter-name;
output output-filter-name;
}
You can include this statement at the following hierarchy levels:
[edit interfaces interface-name unit number family vpls]
[edit logical-systems logical-system-name interfaces interface-name unit number
family vpls]
NOTE: ACX Series routers do not support the
In the input statement, list the name of the VPLS filter to be evaluated when packets are
received on the interface. In the
evaluated when packets are transmitted on the interface.
NOTE: For output interface filters, MAC addresses are learned after the filter
action is completed. When an output interface filter's action is
packet is dropped before the MAC address is learned. However, an input
interface filter learns the MAC address before discarding the packet.

Applying a VPLS Filter to a VPLS Routing Instance

You can apply a VPLS filter to a VPLS routing instance. The filter checks traffic passing
through the specified routing instance.
Input routing instance filters learn the MAC address before the filter action is completed,
so if the filter action is
discard
.
"Configuring VPLS FTFs" on page 87
statement:
filter
statement, list the name of the VPLS filter to be
output
, the MAC address is learned before the packet is dropped.
Copyright © 2016, Juniper Networks, Inc.
default_bpdu_filter
and
88.
[edit logical-systems] hierarchy.
discard , the