What is the error “BUS_HDR_ERR: EARL L2 ASIC #0: Dbus Hdr. Error occurred. Ctrl1 0x930D0EBD” in Cisco 6500 Series Switch? – part 2

As mentioned in my previous post the error “BUS_HDR_ERR: EARL L2 ASIC #0: Dbus Hdr. Error occurred. Ctrl1 0x930D0EBD, Jun  7 16:47:27.446: %EARL_L2_ASIC-DFC9-4-DBUS_HDR_ERR: EARL L2 ASIC #0: Dbus Hdr. Error” means that the EARL L2 ASIC detected an invalid header on DBus, and it could be a faulty Cisco Catalyst 6500 Series 8-Port 10 Gigabit Ethernet Module.

Initially I removed the defective module out of the chassis and firmly reinserted the module in the slot to ensure the module is well seated in the slot.

After reinserting the module it worked well and when I checked logs with the IOS command “ Show module” the module was passing all the test and no error was detected.

SL02-MB-1256-005#                  show module

Mod Ports Card Type                              Model              Serial No.

— —– ————————————– —————— ———–

1    1  Application Control Engine Module      ACE20-MOD-K9       XXXXXXXXXXX

7    2  Supervisor Engine 720 (Active)         WS-SUP720-3B       XXXXXXXXXXX

9    8  CEF720 8 port 10GE with DFC            WS-X6708-10GE      XXXXXXXXXXX

11   10  WiSM WLAN Service Module               WS-SVC-WISM-1-K9   XXXXXXXXXXX

13   10  WiSM WLAN Service Module               WS-SVC-WISM-1-K9   XXXXXXXXXXX

Mod  Sub-Module                  Model              Serial       Hw     Status

—- ————————— —————— ———– ——- ——-

7  Policy Feature Card 3       WS-F6K-PFC3B       XXXXXXXXXXX  1.0    Ok

7  MSFC3 Daughterboard         WS-SUP720          XXXXXXXXXXX  2.1    Ok

9  Distributed Forwarding Card WS-F6700-DFC3C     XXXXXXXXXXX  1.4    Ok

11  Centralized Forwarding Card WS-SVC-WISM-1-K9-D XXXXXXXXXXX  2.2    Ok

13  Centralized Forwarding Card WS-SVC-WISM-1-K9-D XXXXXXXXXXX  2.2    Ok

Mod  Online Diag Status

—- ——————-

1  Pass

7  Pass

9  Pass

11  Pass

13  Pass

SL02-MB-1256-005#

After a week when I again checked the module the error reappeared. Since we had a valid Smartnet contract with Cisco we opened a TAC case with Cisco, an RMA was created and the defective module was replaced. I would siege this opportunity to emphasize the importance of having valid smartnet contracts with Cisco System is very handy and proves to be a worth investment.