Packet Filters; Virtual Chassis; Changes In Default Behavior And Syntax In Junos Os Release 10.4 For Ex Series Switches; Bridging, Vlans, And Spanning Trees - Juniper JUNOS OS 10.4 - RELEASE NOTES Release Note

JUNOS OS 10.4 Release Notes
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Changes in Default Behavior and Syntax in Junos OS Release 10.4 for EX Series Switches

180

Packet Filters

Firewall filters on a management interface
a management interface on an EX Series switch to filter ingress or egress traffic on the
interface.
Support for VLAN and router (Layer 3) firewall filters on EX4500 switches
switches, VLAN and router (Layer 3) firewall filters are supported for IPv4 traffic.

Virtual Chassis

—EX8200 switches can now be connected to form a Virtual
EX8200 Virtual Chassis
Chassis. The EX8200 Virtual Chassis is formed by connecting EX8200 switches to an
XRE200 External Routing Engine. An EX8200 Virtual Chassis is multiple EX8200
switches connected together that operate as a single network entity. The advantages
of connecting multiple EX8200 switches into a Virtual Chassis include better-managed
bandwidth at a network layer, simplified configuration and maintenance because
multiple devices can be managed as a single device, and a simplified Layer 2 network
topology that minimizes or eliminates the need for loop-prevention protocols such as
Spanning Tree Protocol (STP).
Changes in Default Behavior and Syntax in Junos OS Release 10.4 for EX Series Switches
on page 180
Limitations in Junos OS Release 10.4 for EX Series Switches on page 181
Outstanding Issues in Junos OS Release 10.4 for EX Series Switches on page 184
Resolved Issues in Junos OS Release 10.4 for EX Series Switches on page 189
Errata in Documentation for Junos OS Release 10.4 for EX Series Switches on page 191
Upgrade and Downgrade Instructions for Junos OS Release 10.4 for EX Series Switches
on page 191
The following changes in system behavior, configuration statement usage, or operational
mode command usage have occurred since the previous release and might not yet be
documented in the JUNOS OS for EX Series switches documentation:

Bridging, VLANs, and Spanning Trees

Layer 2 protocol tunneling (L2PT) on EX Series switches now supports the Unidirectional
Link Detection (UDLD) protocol.

Class of Service

Beginning in Junos OS Release 10.2, you can configure multiple class-of-service (CoS)
rewrite rules for DSCP, IP precedence, and IEEE 802.1p. Rewrite rules are not assigned
to interfaces by default, and for rewrites to occur, you must assign a user-defined rewrite
rule or system-defined rewrite rule to an interface. For releases earlier than Junos OS
Release 10.2, EX8200 switches supported a single global rewrite rule assigned to all
Layer 2 interfaces and routed VLAN interfaces (RVIs).
—You can now configure a firewall filter on
Copyright © 2010, Juniper Networks, Inc.
—On EX4500