New Features in JUNOS Software for EX-series Switches, Release 9.5
New features in Release 9.5
of JUNOS software for EX-series switches are described in this section.
Not all EX-series software features are supported on all EX-series
platforms in the current release. For a list of all EX-series software
features and their platform support, see EX-series Switch Software Features Overview.
New features are described on the following pages:
EX 8216 switch—The EX
8216 switch is a half-rack, midplane architecture, modular Ethernet
switch that is designed for ultra-high-density environments such as
campus aggregation, data center, or high-performance-core-switching
environments. EX 8216 switches provide high availability and redundancy
for all major hardware components, including Routing Engine (RE) modules,
Switch Fabric (SF) modules, fan trays (with redundant fans), and load-sharing
3000 W AC and DC power supplies. Like other EX-series switches, EX
8216 switches provide high performance, scalability, and carrier-class
reliability.
The EX 8216 switch chassis can accommodate a variety of Ethernet
interfaces, supporting wire rate on all ports for all packet sizes.
An EX 8216 switch accepts up to 16 line cards, double the number of
line cards accepted by the EX 8208 switch. It offers the benefit of
having more port density per rack unit of space than the EX 8208 switch.
The following line cards are available for all EX 8200 series
switches and can be used interchangeably between EX 8208 and EX 8216
switches. You can install any combination of the line cards in the
chassis:
8-port 10-Gigabit Ethernet SFP+ line card
48-port 10/100/1000 RJ-45 line card
48-port 100/1000 SFP line card
Four-post rack-mount kit—The
four-post rack-mount kit is a separately orderable kit for EX 3200
and EX 4200 switches. This kit allows you to mount the switch on four
posts of a four-post rack. It also provides two types of front brackets
that allow you to mount the switch on two-post or four-post racks,
either flush with the front of the rack or recessed 2 inches from
the front of the rack.
New optical transceiver support—The SFP uplink module in EX 3200 and EX 4200 switches now
supports five new optical transceivers:
EX-SFP-1FE-LX (100Base-LX, 10 km)
EX-SFP-GE10KT13R15 (1000Base-BX-U, 10 km)
EX-SFP-GE10KT15R13 (1000Base-BX-D, 10 km)
EX-SFP-GE40KT13R15 (1000Base-BX-U, 40 km)
EX-SFP-GE40KT15R13 (1000Base-BX-D, 40 km)
New optical transceiver support—The SFP+ uplink module in EX 3200 and EX 4200 switches now
supports two new optical transceivers:
EX-SFP-10GE-LR (10GBase-LR, 10 km)
EX-SFP-10GE-LRM (10GBase-LRM, 220 m)
New optical transceiver support—The SFP+ uplink module in EX 8200 series switches now supports
one new optical transceiver:
EX-SFP-10GE-LRM (10GBase-LRM, 220 m)
Virtual Chassis cable—The
maximum length allowed for a Virtual Chassis cable is now 5 meters.
Access Control and Port Security
Dynamic firewall filters—Firewall filters
applied to interfaces enabled for 802.1X or MAC RADIUS authentication
are dynamically combined with the per-user policies sent to the switch
from the RADIUS server. The switch uses internal logic to dynamically
combine the interface firewall filter with the user policies from
the RADIUS server and create an individualized policy for each of
the multiple users or nonresponsive hosts that are authenticated on
the interface.
Bridging, VLANs, and Spanning Trees
Private VLAN (PVLAN) enhancements—The following
access security features are supported on PVLANs: MAC limiting, DHCP
snooping, dynamic ARP inspection, IP source guard, and 802.1X.
Class of Service (CoS)
CoS rewrites—Differential Services code
point (DSCP), IEEE 802.1p, and IP precedence bit value rewrites are
enabled on routed VLAN interfaces (RVIs) on EX 3200 and EX 4200 switches.
CoS multidestination—You can use the CoS
multidestination feature on EX 8200 series switches to specify the
traffic class to be applied to unknown-unicast, broadcast, and multicast
traffic. Three new default classifiers are provided for multidestination
traffic: multicast expedited forwarding, multicast assured
forwarding, and multicast best-effort. A default forwarding
class once configured is applied to all interfaces on the switch.
A classifier option is provided to allow you to specify a classifier
to be used for bridged registered multidestination traffic and IP
multidestination traffic on each interface.
Layer 3 Protocols
Multicast Source Discovery Protocol (MSDP)—You can use MSDP to connect multiple IP version 4 Protocol
Independent Multicast sparse mode (PIM SM) domains. Each PIM SM domain
uses its own independent rendezvous point and does not have to depend
on rendezvous points in other domains.
OSPF multitopology routing (MT-OSPF)—You can use the MT-OSPF feature to define multiple topologies
and to configure topology-specific metrics for individual links as
well as to exclude individual links from specific topologies. As a
result, you can use a single instance of OSPF to carry connectivity
and IP reachability information for different topologies. Information
for different topologies is used to calculate independent shortest-path-first
(SPF) trees and routing tables.
Management and RMON
J-Web enhancements—The
J-Web interface has the following enhancements:
The Ports Configuration page displays details about port
role configuration.
The Link Aggregation Configuration page supports aggregating
interfaces with any speed setting.
J-Web supports IPv6 configuration on the management interface.
The dashboard displays 10-gigabit SFP+ ports.
You can configure:
Spanning-tree protocols
GVRP
IGMP snooping
Redundant trunk groups (RTGs)
The monitoring feature has been enhanced to support:
Ethernet switching
Spanning-tree protocols
GVRP
IGMP snooping
The troubleshooting feature supports setting up real-time
performance monitoring (RPM) and viewing RPM results.
Port mirroring:
Multiple VLAN support—You can configure multiple
VLANs (up to 256) including a VLAN range and private VLANs (PVLANs)
as ingress input to an analyzer in EX 3200 and EX 4200 switches or
as egress input to an analyzer in EX 8200 series switches.
Layer 3 interface support—You can configure Layer
3 interfaces as ingress and egress input to an analyzer.
MPLS
JUNOS MPLS for EX-series switches—Supports Layer 2 protocols and Layer 2 VPNs.
You can configure MPLS on your switches to increase transport efficiency
in your network. MPLS services can be used to connect various sites
to a backbone network or to ensure better performance for low-latency
applications such as VoIP and other business-critical functions.
MPLS on EX-series switches supports only single-label MPLS packets
and does not support LDP-based MPLS. MPLS configurations on EX-series
switches are compatible with configurations on other Juniper Networks
devices that support MPLS and circuit cross-connect (CCC).
Virtual Chassis
Autoprovisioning Virtual Chassis ports (VCPs)—In an existing preprovisioned Virtual Chassis configuration,
you can use the autoprovisioning feature to automatically configure
uplink module ports as VCPs when you add switches to that configuration.
