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:

Hardware

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—MPLS on 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.