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Posts: 1
Registered: ‎01-21-2014

Counter er_inv_arb grows rapidly in an extended ISL

Hello team,

 

I'm configuring  two brocade separate about 15Km by a DWDM line. I have a Brocade 4100 in each datacenter with version v6.4.3c .

 

I am constantly getting errors on the counter " er_inv_arb " in both switches where it is connected dwdm line. It is increasing rapidly.

 

Which may be caused of these errors? Please suggest what are the other things to consider.

 

Thank you very much

Best regards

 

 

SWITCH_A:root> portshow 0

portshow 0
portIndex: 0
portName:
portHealth: HEALTHY

Authentication: None
portDisableReason: None
portCFlags: 0x1
portFlags: 0x10004907 PRESENT ACTIVE E_PORT T_PORT T_MASTER G_PORT LOGICAL_ONLINE LOGIN LED
LocalSwcFlags: 0x0
portType: 10.0
POD Port: Port is licensed
portState: 1 Online
Protocol: FC
portPhys: 6 In_Sync portScn: 16 E_Port Trunk master port
port generation number: 58
state transition count: 51

portId: 5b0000
portIfId: 43020001
portWwn: 20:00:00:05:1e:35:bc:7c
portWwn of device(s) connected:

Distance: static (desired = 40 Km)
portSpeed: 2Gbps

LE domain: 0
FC Fastwrite: OFF
Interrupts: 0 Link_failure: 0 Frjt: 0
Unknown: 0 Loss_of_sync: 0 Fbsy: 0
Lli: 0 Loss_of_sig: 0
Proc_rqrd: 150 Protocol_err: 0
Timed_out: 0 Invalid_word: 0
Rx_flushed: 0 Invalid_crc: 0
Tx_unavail: 0 Delim_err: 0
Free_buffer: 0 Address_err: 0
Overrun: 0 Lr_in: 0
Suspended: 0 Lr_out: 0
Parity_err: 0 Ols_in: 0
2_parity_err: 0 Ols_out: 0
CMI_bus_err: 0

Port part of other ADs: No

 

 

------------------------------- SAME CFG CONFIGURATION IN PORT 0 SWITCH_A & SWITCH_B
SWITCH_A:root> portcfgshow 0
Area Number: 0
Speed Level: 2G
Fill Word: 0(Idle-Idle)
AL_PA Offset 13: OFF
Trunk Port ON
Long Distance LS
VC Link Init ON
Desired Distance 40 Km
Reserved Buffers 46
Locked L_Port OFF
Locked G_Port ON
Disabled E_Port OFF
Locked E_Port OFF
ISL R_RDY Mode OFF
RSCN Suppressed OFF
Persistent Disable OFF
LOS TOV enable OFF
NPIV capability ON
QOS E_Port OFF
Port Auto Disable: OFF
EX Port OFF
Mirror Port OFF
F_Port Buffers OFF
Fault Delay: 0(R_A_TOV)
NPIV PP Limit: 126

 

 

SWITCH_A:root> portstatsshow 0
stat_wtx 58478764 4-byte words transmitted
stat_wrx 58478816 4-byte words received
stat_ftx 422200 Frames transmitted
stat_frx 422200 Frames received
stat_cdr_frx 0 Class 2 frames received
stat_c3_frx 422193 Class 3 frames received
stat_lc_rx 3 Link control frames received
stat_mc_rx 0 Multicast frames received
stat_mc_to 0 Multicast timeouts
stat_mc_tx 0 Multicast frames transmitted
tim_rdy_pri 0 Time R_RDY high priority
tim_txcrd_z 0 Time BB credit zero (2.5Us ticks)
er_enc_in 0 Encoding errors inside of frames
er_crc 0 Frames with CRC errors
er_trunc 0 Frames shorter than minimum
er_toolong 0 Frames longer than maximum
er_bad_eof 0 Frames with bad end-of-frame
er_enc_out 0 Encoding error outside of frames
er_bad_os 0 Invalid ordered set
er_rx_c3_timeout 0 Class 3 receive frames discarded due to timeout
er_tx_c3_timeout 0 Class 3 transmit frames discarded due to timeout
er_c3_dest_unreach 0 Class 3 frames discarded due to destination unreachable
er_other_discard 0 Other discards
er_zone_discard 0 Class 3 frames discarded due to zone mismatch
er_crc_good_eof 0 Crc error with good eof
er_inv_arb 4769 Invalid ARB
open 0 loop_open
transfer 0 loop_transfer
opened 0 FL_Port opened
starve_stop 0 tenancies stopped due to starvation
fl_tenancy 0 number of times FL has the tenancy
nl_tenancy 0 number of times NL has the tenancy
zero_tenancy 0 zero tenancy

 

 

SWITCH_A:root> portbuffershow
User Port Lx Max/Resv Buffer Needed Link Remaining
Port Type Mode Buffers Usage Buffers Distance Buffers
---- ---- ---- ------- ------ ------- --------- ----------
0 E LS 46 46 46 40km
1 - 8 0 - -
2 - 8 0 - -
3 - 8 0 - -
4 - 8 0 - -

....

 


SWITCH_A:root> sfpshow 0
Identifier: 3 SFP
Connector: 7 LC
Transceiver: 150c402001000000 100,200,400_MB/s M5,M6 sw Inter_dist
Encoding: 1 8B10B
Baud Rate: 42 (units 100 megabaud)
Length 9u: 0 (units km)
Length 9u: 0 (units 100 meters)
Length 50u: 15 (units 10 meters)
Length 62.5u:7 (units 10 meters)
Length Cu: 0 (units 1 meter)
Vendor Name: FINISAR CORP.
Vendor OUI: 00:90:65
Vendor PN: FTLF8524P2BNV
Vendor Rev: A
Wavelength: 850 (units nm)
Options: 0032 Loss_of_Sig,Tx_Disable
BR Max: 0
BR Min: 0
Serial No: U8G0G45
Date Code: 051013
DD Type: 0x68
Enh Options: 0xd8
Status/Ctrl: 0x80
Alarm flags[0,1] = 0x5, 0x0
Warn Flags[0,1] = 0x5, 0x0
Alarm Warn
low high low high
Temperature: 34 Centigrade -25 95 -20 90
Current: 6.744 mAmps 1.000 17.000 2.000 14.000
Voltage: 3304.7 mVolts 2700.0 3900.0 2900.0 3700.0
RX Power: -6.3 dBm (232.5 uW) 10.0 uW 1259.0 uW 15.8 uW 794.0 uW
TX Power: -4.7 dBm (338.6 uW) 67.0 uW 631.0 uW 79.0 uW 631.0 uW
SWITCH_A:root>

 

 

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