Packet Filtering; Virtual Router Redundancy Protocol (Vrrp); Ip Multicast; Appletalk - 3Com 4007 Release Note

Operating Considerations in Release 3.0.5 77
If you have defined four trunk groups on one of these modules,
remove one trunk group before you upgrade to Release 3.0.0.
3Com recommends that you enable the Trunk Control Message
Protocol (TCMP) on each end station of a trunk. If this protocol is not
enabled on both end stations, TCMP cannot correctly validate trunk
configuration rules. (29581)
When moving a staged module, the trunking configuration is learned
from the fabric when automapping is used. (27113)
Custom packet filters cannot filter for MAC destination address (DA)

Packet Filtering

or source address (SA) for Layer 3 traffic (not only IP but all routed
traffic). (27596)
The system does not filter for MAC addresses if the frame is going to
be routed and the filter contains a Destination Port Group Mask
(DPGM). (25028)
When you make multiple port filter assignments through SNMP, an
SNMP operation may return an incorrect value.
Virtual Router VRRP is not supported on overlapped, untagged, network-based IP
Redundancy Protocol VLANs. (A "network-based" IP VLAN is a VLAN with a Layer 3 address
(VRRP) that is used to determine VLAN membership.) If the overlapped ports
are 802.1Q tagged, then VRRP is supported. (28616)
IP On a VLAN, the IP interfaces statistics inReceives, inForwards, and
outForward fields are counted one time for each interface. (29295)
The Internet Control Message Protocol (ICMP) is enabled by default. If
end stations ignore ICMP redirects, the system may generate repeated
ICMP redirects, resulting in performance issues.
In allOpen mode, if ICMP redirects are enabled, packets routed
through VLANs that contain multiple interfaces are processed in the FP
(slow path). When multiple IP interfaces are defined for a VLAN, set
the ICMP redirect to to restore performance (fast path).
disable

IP Multicast

To optimize IP multicast performance, do not configure multiple
tagged VLANs over backplane ports.

AppleTalk

When you remove an AppleTalk interface, you are not prompted with
an message. The change happens immediately. (26041)
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