New Features in JUNOS Software for EX-series Switches, Release 9.4
New features in Release 9.4 of JUNOS software for EX-series switches are described on the following pages:
- Hardware
- Access Control and Port Security
- Bridging, VLANs, and Spanning Trees
- Class of Service (CoS)
- Interfaces
- Management and RMON
- Packet Filters
Hardware
- EX 8208 switch—The EX
8208 switch is a modular Ethernet switch that provides high performance,
scalability, and carrier-class reliability for high-density environments
such as campus aggregation, data center, or core switching environments.
EX 8208 switches provide high availability and redundancy for all
major hardware components, including Routing Engines, switch fabric,
fan tray, and power supplies.
The EX 8208 switch chassis can accommodate a variety of Ethernet interfaces, supporting wire-speed performance for each line card. The following line cards are available for EX 8208 switches and can be installed in the chassis in any combination:
- 8-port 10-gigabit Ethernet SFP+ line card
- 48-port 10/100/1000 RJ-45 line card
- 48-port 100/1000 SFP line card
EX 8208 switches support most of the JUNOS Release 9.4 software features supported on other EX-series switches. For a list of software features not supported on the EX 8208 switch, see EX Series Switch Software Features Overview.
- New optical transceiver support—The SFP uplink modules in EX 3200 and EX 4200 switches
now support three new optical transceivers:
- EX-SFP-GE10KT13R14 (1000BASE-BX-U, 10 km)
- EX-SFP-GE10KT14R13 (1000BASE-BX-D, 10 km)
- EX-SFP-LX-40K (1000BASE-LX, 40 km)
- SFP+ uplink module—An
SFP+ uplink module is now available for EX 3200 and EX 4200 switches.
This uplink module supports the following 10-Gbps optical interfaces:
- EX-SFP-10GE-SR (10GBASE-SR, 26 m)
- EX-SFP-10GE-LR (10GBASE-LR, 10 km)
Access Control and Port Security
- Support for configuring ARP aging time for a logical interface—The software provides you the flexibility of configuring an ARP aging timer for each logical interface of family type inet, in addition to configuring a system-wide ARP aging timer at the [edit system arp] hierarchy level. To configure the ARP aging timer at the logical interface level, specify the timer value in minutes at the [edit system arp aging-timer interface interface-name] hierarchy level.
Bridging, VLANs, and Spanning Trees
- VLAN Spanning Tree Protocol (VSTP)—EX-series switches now support VSTP, allowing each VLAN to have its own spanning-tree instance.
- Jumbo frame support on routed VLAN interfaces (RVIs)—EX-series switches now support jumbo frames on RVIs.
Class of Service (CoS)
- Classifiers on routed VLAN interfaces—EX-series switches now support classifiers on routed VLAN interfaces (RVIs).
- Interface-specific rewrite rules—EX-series switches now allow you to configure and apply a rewrite rule for each interface. Earlier, rewrite rules could be configured and applied at the switch level only.
Interfaces
- Ethernet OAM link fault management for EX-series switches—JUNOS software for EX-series switches allows the Ethernet interfaces on these switches to support the IEEE 802.3ah standard for the Operation, Administration, and Maintenance (OAM) of Ethernet in access networks. The standard defines OAM link fault management (LFM). You can configure IEEE 802.3ah OAM LFM on point-to-point Ethernet links that are connected either directly or through Ethernet repeaters. Ethernet OAM provides the tools that network management software and network managers can use to determine how a network of Ethernet links is functioning.
- IP directed broadcast—IP directed broadcast helps you implement remote administration tasks such as backups and wake-on-LAN (WOL) application tasks by sending broadcast packets targeted at the hosts in a specified destination subnet.
Management and RMON
- Autoinstallation—Autoinstallation, which is the automatic configuration of a device over the network from a preexisting configuration file that you create and store on a configuration server, is now available on EX-series switches. Autoinstallation takes place when you power on a device that has the factory default configuration settings or one that is manually configured for autoinstallation. Autoinstallation enables you to deploy multiple devices from a central location in the network.
- J-Web enhancements—The
J-Web interface has the following enhancements:
- The dashboard displays the DC power supply.
- The dashboard displays 10-gigabit SFP+ ports for EX 3200 and EX 4200 switches.
- The Monitoring Chassis Information page displays details about the DC power supply.
- The Virtual Chassis monitoring page displays the details of the Virtual Chassis port (VCP) error and drop counts. The Virtual Chassis monitoring page now displays the maximum bandwidth and actual bandwidth of the VCP also.
- On the dashboard, a rear view image of the chassis is supported for all EX-series switches.
- The Preferences button on the dashboard allows you to set the refresh interval for the information displayed on the dashboard and to select the panels to be displayed on the dashboard.
- Platform-specific JUNOS software installation
packages—EX-series switches now have specific
installation packages for each family of switches, and the names of
the JUNOS software installation packages have been changed to include
the switch family name. The following are the new names for the JUNOS
software installation packages for EX-series switches:
- EX 3200 switches—jinstall-ex-3200-9.4Rx.y-domestic-signed.tgz
- EX 4200 switches—jinstall-ex-4200-9.4Rx.y-domestic-signed.tgz
- EX 8200 switches—jinstall-ex-8200-9.4Rx.y-domestic-signed.tgz
where x.y represents the version of the major software release—for example, 2.1.
All the software installation packages are built from the same JUNOS software code base.
Packet Filters
- Filter-based forwarding—Firewall filters now allow the option of forwarding matched packets to a virtual routing interface.
