Brocade Fabric OS v6.4.3f Release Notes v1.0

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Fabric OS v6.4.3f Release Notes v1.0 Page 110 of 149
Defect ID: DEFECT000281918
Technical Severity: Medium
Summary: Switch report VERIFY - Failed expression: ag_descp != NULL,file = ms_telnetcmds.c, line =
525, user mode args = 140, 0"
Symptom: With AG fabric, DXFM/FM/SMI proxy switch will send GAGI request to another switch in the
fabric with Brocade_AG query. Sometime it triggers verify and floods the raslog. The
continuous verify could cause other side effects such as high cpu load and/or switch panic.
Feature: Fabric Infrastructure
Function: MANAGEMENT SERVER
Probability: Low
Found in Release: FOS6.4.0
Where Else Fixed: FOS6.3.2 b, FOS6.4.0 b, FOS6.4.1 a
Defect ID: DEFECT000296843
Technical Severity: Medium
Summary: Roundtrip time is not correct in TCP due to delayed ACKs.
Symptom: Round Trip Times reported in TCP can be higher than the actual latency of the network,
especially on connections that are mostly idle. This delayed ACK processing can lead to
occasional slow retransmits in TCP.
Feature: FCIP
Function: FCIP Port
Probability: Medium
Found in Release: FOS6.4.0
Where Else Fixed: FOS6.4.1_fcoe, FOS6.4.1 a
Defect ID: DEFECT000297399
Technical Severity: Medium
Summary: rpcd terminated and restarted when multiple RPC connections are initiated in response to
a manageability request
Symptom: On switch with busy management applications, when more than one RPC connection gets
established simultaneously, a race condition may cause multiple connections to free a
shared object twice and trigger rpcd panic.
Feature: Field Escalation
Function: Management Services
Probability: Medium
Found in Release: FOS6.2.1
Service Request ID: 420195
Where Else Fixed: FOS6.4.1 a
Defect ID: DEFECT000301629
Technical Severity: Medium
Summary: fabric.ops.longdistance setting in the default switch causes a credit imbalance on the ISL
to a 2G switch on different logical switch
Symptom: fabric.ops.longdistance is deprecated since FOS v6.1.x. In virtual fabric setup, If user
mistakenly enables that configuration on a logical switch, it creates a credit model
inconsistency on the ISL with other logical switches configured on the same switch. Credits
are returned to the incorrect VC and customer will observe link resets.
Workaround: With the fix, allow fabric.ops.longdistance setting to work when logical switch is
configured on per slot bases
Feature: Field Escalation
Function: ASIC Driver
Probability: Low
Found in Release: FOS6.3.1
Service Request ID: 430875
Where Else Fixed: FOS6.4.1 a