Known Behaviors

The following are limitations in ExtremeXOS and Switch Engine system architecture that have yet to be resolved.

Table 1. Known Issues, Platform-Specific, and Feature Change Requests (CRs)
Defect Number Description
General
EXOS-27575 When encapsulating a packet to be forwarded to a GRE tunnel, the TTL (time to live) field in the delivery IP header is different depending on whether the encapsulated packet requires slow or fastpath processing. When it's slowpath processed (when an IP option is detected on the packet, for example), the TTL is 63. When it's fastpath processed, the TTL is 255.
EXOS-30440 ExtremeSwitching X590, X690, X695, and X870 series switches have observed performance degradation for IPv4 slow path forwarding.
EXOS-30582 ECMP is not supported when any one of the next hop of a route is via tunnel.
ExtremeSwitching X465 Series Switches
EXOS-31156 A crash occurs when a Bluetooth dongle (with paired devices connected via Chalet) is removed.

Workaround:

Remove the Bluetooth dongle only when there are no paired devices.

ExtremeSwitching 5320 Series Switches
EXOS-29421 For ExtremeSwitching 5320 16 and 24-port models, a warning message of "Hardware Table not available for IPv6 routes with Long Masks" occurs when a port is added to an IPv6 VLAN. IPv6 unicast traffic intended for a subnet route with a mask length greater than 64 bits can be forwarded to a less-specific route. This issue is not seen if all IPv6 subnet routes have a mask length less than or equal to 64 bits.
EXOS-30092 On the ExtremeSwitching 5320 series switch, cloning via the Network option is not supported in user VRs because the switch does not have a management port.

Workaround:

Try networking cloning with network reachability over VR-default and VR-Management.

EXOS-31080 ExtremeSwitching 5320 16 and 24-port models have limited ingress ACL “slice” resources and can experience a resource depleted condition when stacking, MLAG, and IPv6 are configured. The following error message may be seen:

01/03/2022 10:09:39.14 <Erro:HAL.VLAN.Error> Slot-1: Filter table Full: Failed to install IPV6 MC Solicit Filter for the port 1:1

EXOS-31151 When connected using Chalet to an ExtremeSwitching 5320 (all models) or an 8-port X435 (X435-8T and X435-8P), selecting the VLAN tab causes Chalet to remain in the loading state.

Workaround:

Create a VLAN before selecting the VLAN tab.

ACL
EXOS-30747 Error logs related to ACL may occur when upgrading to software version 31.6.

Workaround:

Use the shared ACL precedence mode by entering the configure access-list vlan-acl-precedence shared command.

VXLAN
EXOS-31220 RIOT traffic is slow path forwarded when DHCP is enabled on the default VLAN.