Driver Details

Accton HP Switch, v., A03

This self-extracting file contains PE1655MC network switch firmware Rev A02.

Fixes & Enhancements

Initial Release

1. Runtime operation code is updated to v1.0.22.0. Class of Service (CoS) feature is added in this version of runtime operation code.
2. Boot code is updated to This boot code fixes a bug that caused "I2C R/W Test" failure during switch POST when the chassis service tag checksum is equal zero.


Version, A03



Release date

26 May 2004

Last Updated

03 Nov 2011


Available formats

File Format:Hard-Drive
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Other versions
1.1,A02 21 Oct 200310:48:38 AM
Installation instructions
Custom Instructions for

1. Click the Download Now link to download the file.
2. If the Export Compliance Disclaimer window appears, click the I agree link to accept the agreement.
3. When the File Download window appears, click Save to save the file to your hard drive.

Extract Files
1. Browse to the location where you downloaded the file and double-click the new file to unzip the download package.
2. Specify the location to unzip the files.
3. Click on the unzip button to extract files.

1. Prepare a floppy or designated path
2. Double-click this self-extract file and unzip the files in the floppy or the path
3. Open the release.txt to review updates
4. Open readme.txt for detailed firmware programming instructions

Important Information
Using this release, do not configure two 2-port static link aggregated channels on the same PE1655 switch blade and connect the two channels into same VLAN or broadcast domain.

Runtime operation code v1.0.22.5
May 06, 2004
After multiple times of cable failover and failback on trunk ports, Link/Activity
LEDs of trunk ports are malfunctioning.

Root cause:
In the V1.0.22.4, the "value" of the if index is pass to the API,
SWCTRL_TrunkIDToLogicalPort. This is wrong. It should pass "address" of the ifindex to
this API. Otherwise the ifindex will not get the correct value and if the ifindex is
equal to zero, then the following API, VLAN_MGR_IsPortVlanMember will have some trouble.
It will try to use an illegal value as index of array and this will cause "exception".
When this happen, the local console will display some exception message and the LED will
become abnormal.

Add a "&" before the ifindex. Also add more code to make sure when the ifindex is
not in the correct range, it will not go on to call VLAN_MGR_IsPortVlanMember.

Problem: A typo as described below: "Failed to remove untaged list on ethernet 1/7",
"untaged" misses a "g". It should be "untagged".

Root cause: typo.

Fix: Correct the "untaged" into "untagged"

Runtime operation code v1.0.22.4
March 22, 2004
Fixed issues:
A client couldn't ping server blades through either static or LACP trunk after LOM
was disabled and re-enabled in the case of Windows OS.

Root cause:
In static/LACP trunk configuration, the previous version (v1.0.22.3)
did not add the trunk ports into the MultiPortMap. Because of this, the switch didn't allow
arp or other broadcast types of packets to be sent to the trunk ports. When the server LOM
was disabled and re-enabled, it's arp table got cleared up, the server LOM could still
receive the ICMP ping request, since it didn't know the client's mac after re-enabled, it
sent out arp, but couldn't get reply due to the cause stated. Hence, the client ping timed

Added the trunk ports into the MultiPortMap.

Runtime operation code v1.0.22.3
Feb. 11, 2004
Fixed issues:
If an Ethernet frame with source MAC address of all FFFF's was learned by the switch,
the multicast map table was changed. This caused loss of network connectivity to
server blade. The source of the illegal fames is not generated by this switch blade. It is
generated somewhere of the outside network.

Root cause:
This is a chip-level issue within the switching controller ASIC B5632/33 Ax
stepping family. An ingress packet with MACSA = multicast/broadcast, the packet
address is learnt as a unicast frame. Hence, when aging is enabled, a time stamp
(TSTAMP) field gets erroneously appended to the Destination Port field to create the
multicast bitmap. The time stamp field is initialized to all 0's. When the entry is
statistic, the time stamp field remains 0's that causes some bits, which represent
switch ports, are 0's. Those ports with 0's will be excluded from the
broadcast/multicast and not receive the broadcast/multicast packets.

Added codes in firmware to periodically monitor multicast map table of the
switch. When the multicast map table is changed, the firmware re-programs the
right value back and overwrite the wrong table.

Runtime operation code v1.0.22.2
Nov. 24, 2003
Fixed issues:
The Link LEDs were always on no matter link existed or not as long as switch
powered up.

Root cause:
In the LED driver, a data structure needs to use UI16_T instead of UI8_T.
Otherwise the data sent to the lower layer EPLD was incorrect.

Use the right function UI16_T.

Runtime operation code v1.0.22.1
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