针对 Brocade 交换机端口发生连续链路重置 (LR)

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Category:: fabric-interconnect-and-management-switches

Specialty:: brocade

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适用于

所有 Brocade FC 交换机平台
所有 Brocade Fabric OS 固件级别

问题

报告一个端口上的链路重置：

2020/09/01-09:22:48 (CET), [C5-1014], 2001, CHASSIS | PORT 0/13, WARNING, BrocadeG720, Link Reset on Port S0,P13(52) vc_no=0 crd(s)lost=5 auto trigger.

MAPS 在端口 # 上报告的连续链路重置 (LR)，如 errdump -a 中所示：

2020/09/01-14:54:34, [MAPS-1003], 796, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 2], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.
 2020/09/01-15:16:53, [LOG-1000], 798, FID 128, INFO, brocade_switch, Previous message repeated 2 time(s).
 2020/09/01-15:20:34, [MAPS-1003], 799, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 2], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.
 2020/09/01-15:46:53, [LOG-1000], 802, FID 128, INFO, brocade_switch, Previous message repeated 3 time(s).
 2020/09/01-15:46:58, [MAPS-1003], 803, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 4], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.
 2020/09/01-15:56:10, [MAPS-1003], 804, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 2], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.
 2020/09/01-16:01:22, [MAPS-1003], 805, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 4], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.
 2020/09/01-16:16:53, [LOG-1000], 806, FID 128, INFO, brocade_switch, Previous message repeated 1 time(s).
 2020/09/01-16:23:40, [MAPS-1003], 807, FID 128, WARNING, brocade_switch, onpom_fc0, F-Port 13, Condition=ALL_F_PORTS(LR/min>=1), Current Value:[LR, 4], RuleName=CNLV_CMPLNT_LR, Dashboard Category=Port Health.

在 Fabriclog下，可以看到端口正在震荡。

08:39:49.865779 SCN LR_PORT(0);g=0x24e4 LR_IN         D2,P0 D2,P0 13   NA
08:39:57.801578 SCN LR_PORT(0);g=0x24e4 LR_IN         D2,P0 D2,P0 13   NA
08:40:10.095012 SCN LR_PORT(0);g=0x24e4 LR_IN         D2,P0 D2,P0 13   NA
08:40:22.120959 SCN LR_PORT(0);g=0x24e4 LR_IN         D2,P0 D2,P0 13   NA
08:40:23.031030 *Removing all nodes from port         D2,P0 D2,P0 13   NA
08:53:26.644103 *Removing all nodes from port         D2,P0 D2,P0 13   NA
08:53:26.644295 SCN Port F_PORT                D2,P0 D2,P0 13   NA
10:09:04.749379 SCN LR_PORT(0);g=0x27be LR_IN         D2,P0 D2,P0 144 NA

验证 porterrshow 报告过多的链接失败计数器：

frames enc crc crc too too bad enc disc link loss loss frjt fbsy c3timeout pcs uncor tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx err err 376: 298.7k 501.9k 0 0 0 0 0 0 0 0 9.9k 0 0 0 0 0 0 0 0

中断、lli、proc_rqrd、lr_in、lr_out、ols_in、ols_out 在 portshow 中增加：

portshow 13 portDisableReason: None portCFlags: 0x1 portFlags: 0x24b03 PRESENT ACTIVE F_PORT G_PORT U_PORT LOGICAL_ONLINE LOGIN NOELP LED ACCEPT FLOGI LocalSwcFlags: 0x0 portType: 26.0 POD Port: Port is licensed portState: 1 Online Protocol: FC portPhys: 6 In_Sync portScn: 32 F_Port port generation number: 93268 state transition count: 92939

portId: 0a0d00 portIfId: 43020034 portWwn: 20:0d:88:94:71:b1:69:c0 portWwn of device(s) connected: 21:00:00:24:ff:1d:8c:e2 16b Area list: Distance: normal portSpeed: N16Gbps

FEC: Inactive Credit Recovery: Inactive Aoq: Inactive FAA: Inactive F_Trunk: Inactive LE domain: 0 Peer beacon: Off FC Fastwrite: OFF Interrupts: 9909 Link_failure: 3 Frjt: 0 Unknown: 0 Loss_of_sync: 0 Fbsy: 0 Lli: 9909 Loss_of_sig: 0 Proc_rqrd: 211621 Protocol_err: 0 Timed_out: 0 Invalid_word: 0 Tx_unavail: 0 Invalid_crc: 0 Delim_err: 0 Address_err: 0 Lr_in: 4914 Ols_in: 4877 Lr_out: 4877 Ols_out: 4914

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