Release Notes

74 System Firmware Version 5.1.1.7
Multicast VLAN Registration
Description User Impact
MVR is not supported on LAGs Use of MVR is restricted to physical interfaces.
Layer 3 – 4.2.0.4
IP MTU
Description User Impact
IP VLAN MTU Support
Operators may see jumbo packets discarded when operating in a routed IP
environment. Administrators are advised when operating in a L3 routing
configuration with jumbo frames to adjust both the link MTU and the VLAN IP
MTU.
IPv6 MTU
Description User Impact
IPv6 Fragmentation Support
The switch is not fragmenting the datagram and forwards even when the IP MTU
of the forwarding interface is set to a lower value (than the datagram size).
IPv6 frames are not allowed to be fragmented. IPv6 frames forwarded in silicon
can be up to the lesser of 9216 octets or the link MTU. These frames are
forwarded by the switching silicon with no effect. If a frame exceeds the link
MTU for a port, it is discarded silently.
If a packet is sent to the CPU or originated on the CPU and it exceeds the IPv6
MTU, then the packet still will not be fragmented. Instead, an ICMP error
message is returned to the sender. The maximum IPv6 MTU is 1500 bytes.
Administrators are advised that when operating in an L2 switching
configuration with jumbo frames, to only adjust the link MTU and let the
system automatically adjust the IPv4/ IPv6 MTU based on the link MTU.
VRRP
Description
User Impact
The maximum number of VRRP
instances is 50.
Users can scale VRRP higher than previously.
Management – 4.2.0.4
CLI
Description
User Impact
radius-server mode commands do not
have a "no" form.
Low - None of the commands in radius-server mode support a "no" form except
for the msgauth command. To reset values to the default, delete the server entry
and add it back.
The maximum command line length is
1536 characters.
Low - Entries greater than the maximum line length throw an error, e.g. using
multiple interface range qualifiers.
USB
Description User Impact
Dir command can only address top-level
directory on USB stick
Minimal – users can move files to top-level directory easily
Only FAT32 formatted devices are
supported.
Minimal – FAT32 devices are the de-facto standard for flash devices