Specifications

Overview
ExtremeXOS 12.4.4 Release Notes
7
● Ethernet Automatic Protection Switching (EAPS)
- Recognizes Provider Backbone Bridge (PBB) network configurations and provides connectivity
protection for VLANs on PBB network. When the network topology includes both EAPS and a
PBB domain, the EAPS controller mode automatically learns the relationship between the access
VLANS (CVLANS or SVLANS) and the backbone VLAN (BVLAN). If the common link fails in
this configuration, the EAPS master node selects the active port leading to the BVLAN.
-The
configure eaps hello-pdu-egress command is added for special network topologies
that use spatial re-use and require that all EAPS Hello PDUs travel in the same direction on the
ring. The default (primary-port) configuration for this command is recommended.
-The
configure eaps failtime and configure eaps hellotime commands have been
updated to support configuration in milliseconds.
- Fail-timer expiration time can now be set as low as 300ms.
● Virtual Router (VR)
- The number of supported VRs increased from 8 to 64 on the BlackDiamond 8800 c-series. All
other hardware supports up to eight user VRs.
- Output from the
show virtual-router command now indicates the maximum number of user
VRs and protocols supported on the switch.
● Reserved Words—Prior to this release, all keywords were reserved. Reserved keywords cannot be
used for naming user-created objects, such as VLANs. Beginning with this release, only second-level
keywords are determined to be reserved. A complete list of reserved keywords is published in the
“Getting Started” chapter of the ExtremeXOS Concepts Guide.
● ExtremeXOS Documentation
-The ExtremeXOS Command Reference Guide includes two new lists indicating new or modified
commands.
- The “Open Source Licenses” appendix is removed from ExtremeXOS documentation. The Open
Source License information is published on the World Wide Web and the URL can be found in
the preface for each document.
-The ExtremeXOS Concepts Guide, Software Version 12.4, incorrectly states that the “BlackDiamond
8800 original-series modules and Summit X450 switches transmit packets on a single port of a
LAG.” This should read, “The MSM-G8X transmits broadcast, multicast, and unknown unicast
packets on a single port of a LAG.”
New Features and Functionality in ExtremeXOS 12.4.1
This section lists the new features and functionality supported in ExtremeXOS 12.4.1 software:
● Address Resolution Protocol (ARP) Payload Virtual MAC Learning by Bridge—Provides capability
to learn MAC addresses that exist in the ARP payload.
● Bidirectional Forwarding Detection (BFD)—Provides ability to register a discovered neighbor with
the BFD process and get the status of that neighbor. Also provides rapid failure detections and
informs user of path convergence.
● Border Gateway Protocol (BGP) 4-Byte Autonomous System (AS) Number—Provides ability to
configure 4-byte AS numbers for BGP and to peer simultaneously with 2-byte and 4-byte peers.
Introduces optional, transitive attributes AS4_PATH and AS4_AGGREGATOR to propagate 4-byte
AS path information across BGP speakers that do not support 4-byte AS numbers.
● CLI Scripting Enhancements—Enables user to:
- Nest script loading up to three levels