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What's Changed

Learn about what changed in this release for ACX Series routers.

EVPN

  • Updates to syslog EVPN_DUPLICATE_MAC messages—EVPN_DUPLICATE_MAC messages in the System log (syslog) now contain additional information to help identify the location of a duplicate MAC address in an EVPN network. These messages will include the following in addition to the duplicate MAC address:
    • The peer device, if the duplicate MAC address is from a remote VXLAN tunnel endpoint (VTEP).
    • The VLAN or virtual network identifier (VNI) value.
    • The source interface name for the corresponding local interface or multihoming Ethernet segment identifier (ESI).
    For example: Feb 27 22:55:13 DEVICE_VTEP1_RE rpd 39839: EVPN_DUPLICATE_MAC: MAC address move detected for 00:01:02:03:04:03 within instance=evpn-vxlan on VNI=100 from 10.255.1.4 to ge-0/0/1.0.

    For more on supported syslog messages, see System Log Explorer.

  • Limit on number of IP address associations per MAC address per bridge domain in EVPN MAC-IP database—By default, devices can associate a maximum of 200 IP addresses with a single MAC address per bridge domain. We provide a new CLI statement to customize this limit, mac-ip-limit statement at the edit protocols evpn hierarchy level. In most use cases, you don?t need to change the default limit. If you want to change the default limit, we recommend that you don?t set this limit to more than 300 IP addresses per MAC address per bridge domain. Otherwise, you might see very high CPU usage on the device, which can degrade system performance.

    [See mac-ip-limit.]

Infrastructure

  • Option to disable path MTU discovery—Path MTU discovery is enabled by default. To disable it for IPv4 traffic, you can configure the no-path-mtu-discovery statement at the edit system internet-options hierarchy level. To reenable it, use the path-mtu-discovery statement.

    [See Path MTU Discovery.]

Junos OS API and Scripting

  • <get-trace> RPC support removed (ACX Series, PTX Series, and QFX Series)—The show trace application app-name operational command and equivalent <get-trace> RPC both emit raw trace data. Because the <get-trace> RPC does not emit XML data, we've removed support for the <get-trace> RPC for XML clients.

System Management

  • Additional Upgrade fields for the show system applications detail command (ACX Series, PTX Series, and QFX Series)—The show system applications detail command and corresponding RPC include additional Upgrade output fields. The fields provide information about notifications and actions related to various upgrade activities.

    [See show system applications (Junos OS Evolved).]

VPNs

  • Increase in revert-delay timer range— The revert-delay timer range is increased to 600 seconds from 20 seconds.

    [See min-rate.]