HP Cisco MDS 8/24c Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Rel - Page 33

Caveats Send documentation comments to [email protected] • CSCth80324 Symptom: FCIP links flap due to maximum TCP retransmissions ("TCP conn. closed - retransmit failure"), or to extended pings to a peer FCIP switch that shows packet loss. This issue is due to a buffer leak that is caused when ICMP unreachables are generated in response to frames with an unreachable source address, such as 0.0.0.0. This issue can be seen on all Ethernet ports on the MSM-18/4 module and the MDS 9222i switch, when either is running Cisco NX-OS Release 4.2(1) or later, or Cisco NX-OS Release 5.0(1) or later. Workaround: This issue is resolved. • CSCti73204 Symptom: The show interface ethernet flowcontrol command entered on an MDS 9000 Family switch returned the message: "Internal error." Workaround: This issue is resolved. • CSCtj92295 Symptom: An MDS 9000 Family switch fails in the wwnmanager process. Use the show logging log command and the show cores command to confirm the issue: switch# 2010 Nov 8 06:38:28 sw-dc3-br1-51 %SYSMGR-2-SERVICE_CRASHED: Service "wwn" (PID 2897) hasn't caught signal 6 (core will be saved). switch# sh core Module Instance Process-name PID Date(Year-Month-Day Time) 8 1 wwn 2897 2010-11-08 06:38:33 Workaround: This issue is resolved. • CSCtk47039 Symptom: An MDS 9000 Family switch does not respond to an FDISC from an NPV attached switch if the MDS 9000 switch is already processing an FDISC for the same PWWN. This issue occurs when the downstream device is running in NPV mode and the FDISC for the same PWWN must be in progress and no ABTS is sent to cancel the in-progress FDISC. Workaround: This issue is resolved. • CSCtl86272 Symptom: Following a software upgrade on a MDS 9222i switch, traffic failures occurred between a newly configured flow, such as a regular zone flow, an FC-redirect flow, and an IVR flow. The ACL TCAM entry for the affected flow has no adjacency pointer and therefore no forwarding information for the flow, as can be seen by entering the following commands: switch# attach mod x switch# show process acltcam fwd-engine 0 input interface fcy/z ... Loc cl vsan s_id d_id si up sof ipda dport prot sy fi fr en | pri mod ctl adj up vld cw stats ce ... 6ef6 2 64 7d0109 7d0101 1 0 0 0 0 10 0 0 0 0 0 0 0 0| 0 0 0 0 ... OL-25090-01 Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(1) 33