
              Operating System Version B.xx.xx Information
             for the "B" Version of the Switch 2000 (J3100B)
                      and the Switch 800T (J3245A)
             -----------------------------------------------

NOTE:  This file contains operating system (OS) information for the Switch 2000B
       and associated modules, and for the Switch 800T.  Some issues described
       below relate to only the 2000B (for example, where a switch module is
       involved).


THIS Software Version:  B.04.29
Release Date:  9/5/00

New features:
-------------
none

Performance enhancements:
-------------------------
none

Fixed bugs:
-----------
SWITCH_4288  ABC: When ABC is enabled for IP, the switch does not forward
"gratuitous ARPs" (which are sent by applications such as MC Service Guard,
VRRP, and HP Routing Switch redundant management modules, for example).

SWITCH_4426  Packet Buffer Leak: When an end node telnets to the switch
and includes data in the ACK packet, the switch receives the packet
but does not release the packet buffer.  (Some HP-UX 11.0 systems
send data in the ACK packet.)

Known bugs:
-----------
none

Known limitations:
------------------
none


================================================================================
                 COMPLETE Software Version History Below:
================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.03.01  3/20/97   First release for HP Switch 2000B (J3100B).


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.03.02  6/23/97   Resolves the problems listed below.

Problems Resolved in B.03.02
============================

SWITCH_1463  Memory leak: Seen in situations with large amounts of ARP traffic.
When free memory decreases to a low level without recovering, actions such as
initiating Telnet or console access to the switch result in a crash with the
message:
   -> software exception at builtin_new.c:45 -- task ID = 15
   -> C++ new: out of memory.

SWITCH_1489  100VG and IGMP:
   Case 1: The switch receives a 100VG high-priority packet
   Case 2: IGMP "Forward with High Priority" is configured, and the switch
           receives an IP multicast packet.
For either of the above two cases, packets are not forwarded as follows:
   out Ethernet port 1 if Ethernet port 2 on that same module is not connected
   out Ethernet port 3 if Ethernet port 4 on that same module is not connected.

SWITCH_1514  IGMP: After the switch receives a DVMRP or PIM router packet,
the IP multicast data streams could be forwarded to ports that should not
be transmitting the data.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.03.04  8/20/97   Resolves the problems listed below.

Problems Resolved in B.03.04
============================

SWITCH_1541  Memory issue: With ABC turned off, memory on the switch contains
unnecessary ARP data.

SWITCH_1549  MIB: The following values of the etherStatsTable
(RMON MIB, RFC1757) are not reported correctly:
   etherStatsPkts64Octets
   etherStatsPkts65to127Octets
   etherStatsPkts128to255Octets
   etherStatsPkts256to511Octets
   etherStatsPkts512to1023Octets
   etherStatsPkts1024to1518Octets

SWITCH_1553  Event log: The event log message
  "ipx: <vlan>: Net <net number> changing too often, ignoring changes"
has been modified to
  "ipx: <vlan>: Locking <net_number> (<encaps>), network number changes ignored"
This message appears when the switch detects multiple IPX network numbers for a
given encapsulation, and defines which of those network numbers the switch has
chosen (locked onto) for communication.  Also, ABC for IPX will be automatically
disabled in this situation, to avoid impacts to network traffic.

SWITCH_1554  ABC: With IP RIP Control enabled, the switch fails to forward IP
RIPs if the neighboring routers are in a different IP network/subnet than the
switch.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.03.20  11/10/97  Adds support for new Switch 2000 ATM Module (J3246A) and
                   for "C" version of 100Base-TX transceiver module (J3192C).


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.03.21  12/9/97   Resolves the problems listed below.

Problems Resolved in B.03.21
============================

SWITCH_1616  Reboot: The denial-of-service attack known as "Land Attack"
(source code "land.c" or "moreland.c"), causes the switch to reboot.
This attack involves a TCP SYN packet with the destination IP address
equal to the source IP address.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.00  1/7/98    Adds new features for the Switch 2000B and Switch 800T:
                   Enables the switch to support HP's intuitive, friendly
                   Web-browser interface for:
                   - monitoring switch performance
                   - reporting local LAN problems and suggesting solutions
                   - configuring and diagnosing switch operation

Problems Resolved in B.04.00
============================

SWITCH_1700  Ping/Telnet: The switch accepts incorrect ICMP redirects that
(wrongly) tell the switch to send local traffic to another device, causing
ping or telnet to/from the switch to fail.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.23  4/3/98    Resolves the problems listed below.

Problems Resolved in B.04.23
============================

SWITCH_1469  Linktest: 802.2 test packets ("linktests") generated FROM the
switch succeed, but when sent TO the switch from another device, linktests fail.

SWITCH_2626  Web-browser Interface: Possible problem of gradually decreasing
memory causing the switch to crash, associated with use of the Web-browser
interface.

SWITCH_2627  IPX: The following combination of events can cause the switch
to crash:
   1) An IPX network misconfiguration (using multiple encapsulation types
      for the same network number)
   2) A switch port going off-line
In this situation the switch can crash with a message similiar to:
   -> software exception at ipx_vlan.c:193 -- task ID = 92 rt=0


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.24  6/19/98   Resolves the problems listed below.

Problems Resolved in B.04.24
============================

SWITCH_2713  ABC: When ABC is enabled, some ARP cache entries are not aged out.

SWITCH_2730  Web-browser Interface: Switch may crash due to a message buffer
leak, associated with use of the Web-browser interface.

SWITCH_2815  Spanning Tree: Switch fails to recognize a Topology Change
Notification packet that has been padded by some value other than zero.

SWITCH_2895  Fault-Finder: Fault-Finder trap sends incorrect URL to management
station.

SWITCH_2958  Web-browser Interface: No option to adjust the scale on
Port Utilization graph.

SWITCH_2980  Crash: Switch may crash with a bus error or NMI message in
this situation:
1) multiple repetitions of a ping, IPXping, or linktest are initiated from
   a management station, and
2) the tests are stopped by the user before the specified number of
   repetitions is completed.

SWITCH_3022  Spanning Tree: Switch does not restart the "hello" timer
after the root port is disabled.

SWITCH_3024  Configuration: In some cases after a reboot, the config file
does not contain the latest changes.

SWITCH_3032  IP Connectivity: Switch does not update its ARP cache properly.
This results in failure of ping or telnet between the switch and the device
whose MAC address has changed, but whose IP address remains unchanged.

SWITCH_3079  IPX: Upon detecting a misconfigured IPX network (multiple frame
types for a single network number, or multiple network numbers for a single
frame type), the switch event log incorrectly reports which frame type
the switch has "locked" onto.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.25  9/11/98   Adds new features:  Spanning Tree "fast" mode, and the
                   ability to enable the switch as a TFTP server to retrieve
                   its config, using one of these case-sensitive commands:

   setmib  hpSwitchIpTftpMode.0  -i  1     (disable tftp server, the default)
   setmib  hpSwitchIpTftpMode.0  -i  2     (enable tftp server)

Also, B.04.25 resolves the problem(s) listed below.

Problems Resolved in B.04.25
============================

SWITCH_3090  IP: Switch evaluates a remote device's IP address using the
switch's own subnet mask.  In a network with variable length subnet masks,
the switch fails to reply to an IP destination that the switch (wrongly)
interprets as a broadcast address.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.26  10/16/98  Resolves the problem(s) listed below.

Problems Resolved in B.04.26
============================

SWITCH_3181  Crash: Switch crashes with this message:
   system: Fault:02 subType:02 IP:0x00000000 PCW:0x00002002
This crash has been associated with network management applications
such as TopTools.  [NOTE: The description of this bug (SWITCH_3181) was
incorrect in the file "readb426.txt".  The above description is accurate.]

================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.27  4/19/99   Resolves the problem(s) listed below.
(BETA)

Problems Resolved in B.04.27
============================

SWITCH_3200  Crash: Switch crashes with this message:
   system: Fault:02 subType:02 IP:0x00021be8 PCW:0x00000003
This crash has been associated with network management applications
such as TopTools.

SWITCH_3391  Crash: Switch may crash with an NMI error.  This crash is due to
the switch trying to free a block of memory (allocated to the ARP cache) that
had already been freed.


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.28  10/21/99  Enhanced "Find-Fix-Inform" (FFI) problem descriptions and
                   suggested actions in the switch event log and web-browser
                   interface.

Also, B.04.28 resolves the problem(s) listed below.

Problems Resolved in B.04.28
============================

SWITCH_3211  Crash: The switch may crash with messages similar to:
   -> software exception at memory.c:471 -- task ID = 114
   -> mem_free: segment not busy
Another symptom is a crash with a message similar to:
   NMI: IP=0x000ec5cc
These crashes have been associated with network management applications
such as TopTools, in conjunction with Automatic Broadcast Control (ABC).
[NOTE: This bug fix description was incorrectly attributed to SWITCH_3181
in the file "readb426.txt".]


================================================================================
VERSION  DATE      DESCRIPTION
-------  ----      -----------
B.04.29  9/5/00    Resolves the problem(s) listed below.

Problems Resolved in B.04.29
============================

SWITCH_4288  ABC: When ABC is enabled for IP, the switch does not forward
"gratuitous ARPs" (which are sent by applications such as MC Service Guard,
VRRP, and HP Routing Switch redundant management modules, for example).

SWITCH_4426  Packet Buffer Leak: When an end node telnets to the switch
and includes data in the ACK packet, the switch receives the packet
but does not release the packet buffer.  (Some HP-UX 11.0 systems
send data in the ACK packet.)
