User guide

Open Problem Reports and Feature Exceptions
OmniSwitch 6600/7000/8800—Release 5.1.5.R04 page 67
PR 60680
If a single MAC address of a single device is attached to a single port on the switch and is generating
multiple SNAP types with non-zero vender identification, on the OS7000, one will be unable to create
VLAN protocol rules to isolate each generated SNAP type into its own VLAN.
Workaround: There is no known workaround at this time.
PR 60983
Changing the IP address on workstations connected to a hub will not force the workstation MAC address
to drop from a VLAN that it has already qualified for by a network address rule to join a new network
address-ruled VLAN on the OS7000.
Workaround: Follow the instructions below:
1. Remove hub connection from switch and re-attach.
2. Connect workstations directly to the switch and reboot workstation when IP address changes made.
3. Let the MAC address for the station age out of switch CAM.
PR 61740
On OOS7000 mobile ports, stations using the IP address range after a station has “autoconfigured itself”
will not be learned.
Workaround: The user must perform a release and renew to recover the DHCP-provided IP address. The
use of autoconfiguration (aka Automatic Private IP Addressing) is not recommended within an enterprise
network environment.
PR 61994
When traffic violates a port-protocol binding rule, source learning does not indicate by VLAN which rule
was violated on the OmniSwitch 8800.
Workaround: There is no known workaround at this time.
PR 62119
The ip-port and mac-ip-port binding rules filter the IP address on the port configured if it does not match
on the OS7000. Once the MAC address is made part of the VLAN targeted by such rules, the IP address
can change to another address in the subnet or subnets carried on that VLAN.
For instance, if an ip-port binding rule is created for VLAN 21 with an IP address of 21.0.0.22 and a port
of 2/3, and the device has an IP address configured as 22.0.0.22. When the device is connected to 2/3 and
traffic is generated, such as a ping to another subnet 22 address, the port will be listed by the MAC address
table in VLAN 21. If the device, such as Windows NT or 2000, changes its address to 21.0.0.41, the
switch will continue to carry the new traffic and not blocked as expected with this type of binding rule.
Workaround: Reboot the device or disconnect the link to restore normal binding rule behavior.