Bridging, VLANs, and Spanning Trees
•
PVLAN configuration—A private VLAN (PVLAN) can be configured to span multiple
switches.
Class of Service (CoS)
•
IPv6 CoSsupport on EX8200 switches—Classification of IPv6 packets is now supported
on EX8200 switches. You can configure rewrite rules for IPv6 packets.
Fibre Channel over Ethernet
•
FIP snooping—FIP snooping is supported on EX4500 switches. FIP snooping is a security
feature that can be used to prevent man-in-the-middle attacks when the switch is
being used as a Fibre Channel over Ethernet (FCoE) transit switch.
•
Priority-based flow control—Priority-based flow control (PFC) is supported on EX4500
switches. PFC, IEEE standard 802.1Qbb, is a link-level flow-control mechanism that
allows you to selectively pause traffic according to its class. PFC must be used for Fibre
Channel over Ethernet (FCoE) traffic.
High Availability
•
Nonstop active routing (NSR)—Nonstop active routing (NSR) is now supported on
EX8200 switches that have multiple Routing Engines installed. You can configure
nonstop active routing to enable the transparent switchover of the Routing Engines
without restart of supported routing protocols. In this Junos OS release, NSR supports
only the OSPFv2 protocol. Other protocols might also work but are not supported.
•
Nonstop software upgrade (NSSU)—Nonstop software upgrade (NSSU) is a new high
availability feature supported on EX8200 switches with redundant Routing Engines.
An NSSU upgrades the software running on both Routing Engines with a single
command and with minimal traffic disruption.
Infrastructure
•
IPv6 support on EX4500 switches—EX4500 switches support IPv6 addresses for
in-band management on the management interface and on network interfaces.
•
Multicast storm control—On EX Series switches, storm control, when enabled on an
interface, applies to multicast traffic in addition to broadcast and unknown unicast
traffic. On EX8200 switches, you can selectively disable storm control on registered
multicast traffic, unregistered multicast traffic, or both types of multicast traffic.
Management and RMON
•
J-Web interface support for the 40-port SFP+ line card for EX8200 switches—J-Web
interface support has been added for the 40-port SFP+ line card for EX8200 switches.
•
sFlow technology enhancements—You can now specify an egress or ingress rate at
which packets can be sampled.
179Copyright © 2010, Juniper Networks, Inc.
New Features in Junos OS Release 10.4 for EX Series Switches
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