User guide

Open Problem Reports and Feature Exceptions
page 56 OmniSwitch 6600/7000/8800—Release 5.1.6.R02
Port Mirroring
Feature Exceptions
• On OS6600 switches, port mirroring is not supported across a stack, i.e. mirrored port on slot 1 and
mirroring port on slot 4.
• On an OS6648 switch, port mirroring is not supported between lower ports (Fast Ethernet port 1-24 or
Gigabit Ethernet port 51-52) and upper port (Fast Ethernet port 25-48 or Gigabit Ethernet port 49-50).
• On an OS6602-48 switch, port mirroring is not supported between lower ports (Fast Ethernet port 1-24
or Gigabit Ethernet port 51-52) and upper port (Fast Ethernet port 25-48).
• When port mirroring is enabled on OS7000/8800 Gigabit modules, Egress mirror performance is
1330974 p/s.
• When port mirroring is enabled on an OS8-GNI-C24, Egress mirror performance is 1430792 p/s.
Problem Reports
PR 35206
The reQid packet delivery is unreliable if Qid has problems on an OS7000 series switch. It affects port
mirroring. The port mirroring feature may display frames that were received by the switch, but never set
out because the queue was already full.
Workaround: There is no known workaround at this time.
PR 66806/66847
Packets are mirrored only if the hardware is programmed on an OS6624/6648 switch. During the learning
process, the hardware is not yet programmed. Under heavy traffic, not all packets are mirrored.
Workaround: There is no known workaround at this time.
PR 66845
The mirroring (destination) port on an OS8800 switch gets one frame extra with 'Unknown SA and Known
DA' Egress traffic on Mirrored ports.
Workaround: Use second generation modules.
PR 66862
Port mirroring is not supported across the stack. Please note that you cannot do port mirroring between
upper and lower 24 ports on an OS6648 switch.
Workaround: There is no known workaround at this time.