Subscriber Policies; Table 27: Default Subscriber Policies For Bridge Group Interfaces - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13 Configuration Manual

JunosE 11.3.x Link Layer Configuration Guide

Subscriber Policies

468
Bridged Ethernet over ATM 1483 subinterfaces
Fast Ethernet interfaces
Gigabit Ethernet interfaces
10-Gigabit Ethernet interfaces
VLAN subinterfaces over Fast Ethernet, Gigabit Ethernet, 10-Gigabit Ethernet, or bridged
Ethernet interfaces
For sample configurations that include bridge interfaces, see "Configuration Examples"
on page 485. For information about configuring Ethernet, ATM, and bridged Ethernet
interfaces, see:
"Configuring ATM" on page 3
"Configuring VLAN and S-VLAN Subinterfaces" on page 167
"Configuring Bridged Ethernet" on page 443
Chapter Configuring Ethernet Interfaces in JunosE Physical Layer Configuration Guide
To enable intelligent flooding of packets within a bridge group's broadcast domain, each
bridge group interface you create is associated with a default subscriber policy. A
subscriber policy is a set of forwarding and filtering rules that defines how the bridge
group interface handles various packet or attribute types, as follows:
For each packet type, the subscriber policy specifies whether you want the bridge group
interface to permit (forward) or deny (filter or drop) packets of that type.
For the relearn attribute, the subscriber policy specifies whether the bridge interface
can relearn a MAC address entry on a different interface from the one initially associated
with this entry in the forwarding table. Permit indicates that relearning is allowed, and
deny indicates that relearning is prohibited.
The router provides two default subscriber policies: default Subscriber for subscriber
(client) bridge interfaces, and default Trunk for trunk (server) bridge interfaces.
Table 27 on page 468 lists the default values for each packet or attribute type defined in
the default Subscriber and default Trunk policies. The only difference between the two
policies is how broadcast packets and packets with unknown unicast destination
addresses (DAs) are handled.

Table 27: Default Subscriber Policies for Bridge Group Interfaces

Packet/Attribute Type Default Subscriber Policy
ARP Permit
Broadcast Deny
IP Permit
Default Trunk Policy
Permit
Permit
Permit
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