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Revision Notes for Router Software v7.80 rev 3
Date: 11/23/94
Subj: Revision Notes for 7.80 fix 3
=========================================================================
SITE MANAGER COMPATIBILITY
=========================================================================
Router version is managed by Site Manager version
v7.80 1.80, 2.00
7.80 fix 1, 2, 3 1.80, 2.00
=========================================================================
The image for FRE hardware is: 1472507 Nov 22 15:02 boot.exe
The image for VME & AFN Floppy hardware is: 1498139 Nov 22 15:16 ace.out
The image for AN hardware is: 1294417 Nov 22 15:25 boot.exe
The image for IN & AFN Flash hardware is: 1372181 Nov 22 15:30 boot.exe
_____________________________________________________________________________
Revision fix/7.80/3 corrects the following problems:
=============================================================================
CR 11259: Frames less than or equal to 16 bytes in length do not get picked
up by Learning Bridge on FDDI interface. The initial frame was
generated from a client on an ethernet segment and destined for
a server on a remote ethernet. The two ethernet segments were
connected via two Wellfleet bridges with fddi as the connecting
transport.
CR 10860: A network that routes Vines and also has end station support and
servers that are redundantly linked to the bridged network,
may show servers as unreachable on the remote slots where Vines
is routed.
CR 10814: DECnet router does not generate triggered update when adjacency
comes up.
CR 10966: DECNET router may experience a hogs bufs condition which could lead
to multiple PANICS when a topology change occurs. The specific
topology change would be in the form of a number of adjacencies
going unreachable at the same time and the presence of at least one
other router sharing a common segment. What can happen is that when
the adjacencies time-out, DECNET, which does not support
split-horizon, counts to infinity to age out the routes. During
this time of counting to infinity hogs bufs can occur. Also,
counting to infinity takes more CPU cycles than it should.
CR 10793: IPX ping over token ring fails intermittently.
CR 9999: Slot can reset with 'Out of Memory' errors when IPX interface with
many (> 400) hosts entries goes down.
CR 10702: Although a Wellfleet router running version 7.80 and 8.0 software
can transport DHCP requests/replies, there are still areas where
Wellfleet routers are not 100% RFC1532 compliant.
1) The BootP Relay agent should only care about UDP BootP Server
packets (port 67). The current code registers and processes for
both BootPC and BootPS ports. A relay agent MUST silently discard
any received UDP message whose UDP destination port number is
BootPC (68) in paragraph 4.1 of RFC1532.
2) Seconds field should apply to request packets only so one can set
the seconds field to a non-zero number and still let 0 second
replies through. Our implementation checks both request and
replies. The Microsoft implementation has a minor problem of
not setting it to 0 initially and not incrementing it
subsequently (see paragraph 3.2 in RFC1532).
3) The newly defined Broadcast flag is not checked in the current
code, the correct behavior is to broadcast only if 'ciaddr'
field is zero and the flag is set. (See paragraphs 3.1.1 and
5.3 in RFC1532).
CR None: System reliability is now improved on ACE32 processors by the
addition of a watchdog process which will restart a slot if a
single task runs for more than 16 seconds.
CR 10569: When deleting one IP address from a multinetted interface arp
will no longer function correctly. If an IP address gets deleted
from a multinetted interface all devices on remaining network
will be unreachable.
CR 9763: When using Protocol Prioritization - Bandwidth Allocation Method,
there is a condition that the serial port could enter where all
traffic would stop flowing, under saturation conditions. If Bofl
was enabled, the port would be restarted after the Bofl timeout
(resulting in a 'transmitter timeout' logged message), otherwise
the port would hang indefinately. This problem would often occur
on both sides of the serial link (even if PQ wasn't enabled on
the remote side).
CR 10724: If multiple packets are sent to a dial on demand circuit in quick
sequence bus error/panic will occur before the modem dials out.
The packets in this case were ip encapsulated source route
explorer packets.
CR 8616: Dial back up circuit is unable to establish the PPP link the first
time the primary link goes down after being booted.
CR 10583: In a dial backup configuration. When the Tx wire is disconnected
8630: from a Slave router, the master's primary line goes down. When
the slave accepts the call from the master a bus error occurs.
CR 10029: When configuring outbound filters based on source or destination
MAC address, the MAX address must be entered in canonical format.
The problem then arises that when entering a MAC address range in
canonical format, the high address range could end up with a lower
value than the low range and Site Manager will give a message
'Minimum Value Greater Than Maximum Value'. Added a new MIB variable
'wfCctOptsEntry.wfCctOptsMacFilterFormat'. The default is 1,
which is canonical. Setting this to 2 will allow entering MAC
filters in token ring format. (Note: All filters on the interface
must be in token ring format!). Site Manager support for this option
will be implemented in a future release.
CR 10563: When running Vines over Frame Relay with Vines Fragmentation
Protocol (FRP) disabled, Vines traffic will not be forwarded.
CR 10746: IPX router responds to Get Nearest Server request when sap
filters are configured on the same interface where both a
server and a client reside (10746).
CR 10857: IPX router doesn't update its SAP advertisement after socket
number changes.
CR 10859: IPX router does not correctly forwarded IPX Netbios frames
(type 14h).
CR 10819: XNS can restart on the slot where one or both sync lines in a
multiline configuration go down/up.
CR 10787: IPX router does not age out rip entries received with a hop
count of 15.
CR 10607: EGP neighbour connection not re-established after circuit goes
down/up.
CR 10667: IPX Routes May Fail to Age Properly. The Lost Route implementation
incorrectly forms the packet to be sent out in the case where that
route was learned to be dead (hop count of 16) from a different
interface than the one that the route was originally learned from.
CR 10763: Transparent bridge / Multiline interface fails to come up on boot
or slot reset.
CR 10745: Enhancement for Dial-on-Demand circuits to allow the configuration
of the inactivity timer to be in seconds instead of minutes. Note
that this change affects existing config files such that what the
network administrator previously configured in minutes is now a
value in seconds.
CR 10696: Learning bridge over token ring does not learn about station
moves as it should.
CR 10314: In particular configuration DECnet router sends incorrect level
2 routing message designating local area as 1 hop and some non
zero cost away.
CR 9958: Vines router does not respond to StreetTalk requests from clients
on serverless segments.
CR 9870: Dynamic disabling of an OSPF interface can cause a PANIC bus
error on non-backbone routers.
CR 10412: When Learning bridge traffic is flooded over FDDI onto a Frame
Relay network the router at the remote side does not flood the
bridge traffic out its other interfaces which reside on the same
slot as the Frame Relay interface.
CR 10417: BGP-3 Update messages are sent with incorrrect next hop in
particular configuration.
CR 10543: Slot resets with 'System restart in tmo_wdog.c at line 51' when
XNS router learns many (500) routes after wan link goes down/up.
CR 10685: Running NetBIOS Caching may cause panic in sr_nb_process_are due
to RIF entries being aged while the same RIF entries are being
relearned.
CR 10684: Running NetBIOS Caching may cause a 'PANIC in mib_ent.c at line
710' due to RIF entries being aged while the same RIF entries
are being learned.
CR 9175: Router responds to SMDS hartbeat poll on logical link 0 instead
of logical link 1.
======================== Version 7.80 fix 2 =============================
The image for FRE hardware is: 1472625 Oct 11 13:02 boot.exe
The image for VME & AFN Floppy hardware is: 1498397 Oct 11 13:10 ace.out
The image for AN hardware is: 1291709 Oct 11 13:16 boot.exe
The image for IN & AFN Flash hardware is 1370974 Oct 11 13:19 boot.exe
_____________________________________________________________________________
CR None: Tag violation slot resets can occur when runt (< 14 byte) frames
are received on HSSI interfaces.
CR 10047: Access Node Token ring interface does not receive a Source
Route Bridge SRF, ARE, or SRE with a RIF of size greater than
14 bytes.
CR 10076: Dial on demand using X21 terminal adaptors, ISDN, V25bis
signalling on 44 pins sync interface does not work. Sync
interface cannot see the modem, reports CTS failure. Incoming
calls never transit out of v25bis signalling to data mode, all
LCP configuration frames are interpreted as illegal v25bis
commands. Outgoing calls never transit from modem signalling
to LCP configuration phase.
CR 9453: When about 300 external networks become unreachable and corresponding
ASE LSAs are flooded with Max Age throughout OSPF AS, OSPF on some
routers (depending upon configuration) may generate Hogs Bufs errors.
CR 10379: The 'show bgp peers' command doesn't show configured values for
Hold and Keep Alive timers.
CR 10380: When exporting routes via BGP with the BGP Export Route Filter
InterAsMetric set to None the receiving router installs a value
of 0 instead of nothing.
CR 7221: IP and OSPF remain up when FDDI interface is disconnected.
CR 10009: After the primary line is disabeled, initialization of the
backup dial circuit can cause a panic. The PRIMARY line was
configured as STANDARD.
======================== version 7.80 fix 1 =============================
The image for FRE hardware is 1472061 Sep 28 14:39 boot.exe
The image for VME hardware is 1497508 Sep 28 14:47 ace.out
The image for AN hardware is 1290671 Sep 28 14:52 boot.exe
The image for IN hardware is 1370273 Sep 28 14:55 boot.exe
=========================================================================
CR 7188: Poor performance (Lack of resource errors dropping packets on
ethernet interfaces) in large (1000 nets, 800 saps) IPX networks.
CR 9968: In particular configuration where certain packets are received
on an ethernet interface in a specific order VINES packets are
lost (due to being delivered to wrong ISAP) causing excessive
delays in file transfers.
CR 10273: If there is a default route configured and BGP-3 export filters
as in:
IGNORE default range from ANY protocol from ANY BGP AS from
specific Peer,
PROPAGATE default route (0.0.0.0+255.255.255.255) from ANY
protocol and any AS for specific Peer,
PROPAGATE class B natural network rangefor everything.
Watchdog expiration slot resets can occur in routine
'ip_ck_export_rules' routine when BGP-3 processes default route.
CR 9197: IP Host is not relearned after an adjacent host entry for that host
is dynamically disabled. Also, if this host happens to be a router,
then any networks beyond that router become unreachable.
CR 9885: When IP data is to be forwarded to a network which is not directly
connected to the local router and is available via a non-peer
BGP-3 speaker, the router fails to ARP for the next hop media
address of the non peer BGP-3 speaker.
CR 9739: Spanning Tree does not forward packets immediately after changing a
previously blocked port to forwarding when convergence is completed.
CR 9466: The MIB variable 'wfIpInterfaceForwDatagrams' decreases instead
of increasing on OSPF interfaces.
CR 7711: 'PANIC in map_rem.c at line 60' error can occur when dial backup
circuit is changed from primary to normal.
CR 9960: Multiline circuits do not recover properly when there are more than
2 lines per circuit and one of the lines goes down.
CR 9761: When packets are fragmented by X.25 using the M bit, there is a
forced 200ms delay between fragments (even when the window is
open) providing that no inbound packets are seen. This causes a
sub-optimal use of the transmit window which is especially
noticable over a satellite link.
CR 9225: Bridge traffic doesn't properly switch back to the primary line
8743: from a dial backup one. The router may stop learning and taking
incoming traffic from the sync port. Also the router may loop
back broadcast packets in the sync port.
CR 9467: The Threshold feature configured under Global Protocols which
allows messages to be put in the log file when certain statistics
reach predefined values, displays the threshold event in the log
with asn.1 notation (such as 1.3.6.1.4.1.18.4.3.1.1.28.2.1)
instead of the variable that it represents (wfCSMACDErr).
This functionality has been provided by a new configuration option
in Statistical Threshold and Alarms (STA). The administrator can
now configure the threshold Object name portion of the MIB
variable to be a user defined string.
For example, if the ThresholdLabel is not configured the logged
event looks like;
'Object 1.3.6.1.4.1.18.3.4.5.1.36.2.1 with value = 233 units/sec
is > low threshold.'
If the ThresholdLabel is configured the logged event looks like;
'Object wfSyncTxOctets.2.1 with value = 235 units/sec is >
low threshold.'
To configure from TI;
s wfStaThresholdEntry.wfStaThresholdLabel.14.1.3.6.1.4.1.18.3.4.5.1.36.2.1
"wfSyncTxOctets.2.1".
With SiteManager version 2.0 or greater it can be configured via
protocols->global->threshold>->wfswconfig->wfline->wfSyncTable->
wfSyncRxoctes, bring up the window to add the port and circuit
number to see the Threshold label screen.
CR 9978: Force takedown does not work for dial demand and takedown does
not work for dial backup.
CR 9708: After configuring an ospf import route filter to ignore all type
1 externals, the type 1 externals do not get filtered.
CR 9842: With LNM enabled on a Token Ring interface receiving a lot of
traffic continuously 'scheduler exited due to orphaned buffer'
faults can occur.
CR 9839: Setting up Bridge Traffic Filters to drop IP broadcast traffic
while bridging and running IP 'Not Forwarding' mode does not
work. The Traffic Filters are not applied.
CR 9215: The MIB variable wfOspfIfEntry.wfOspfMtuSize added in version
fix/7.71/1 is supposed to control the MTU size for OSPF packets
sent over this interface. When set to a value of 2, it should
send packets no larger than the IP MTU size for Ethernet. This
restriction is not working and much larger packets are being sent.
CR 9690: The External Route Tag Field within an OSPF AS External Link
State Advertisement is inconsistant when the ASE is generated
from a 7 series router. The use of this field, although not
documented in the OSPF specification to this effect, in the 5
series is to list the IP address of the gateway from which an ASE
Type 2 was originally learned via RIP (or other protocol). The 5
series does this consistently and has proved to be an invaluable
troubleshooting tool when debugging a large OSPF network where
there are multiple routers advertising the same ASE Type 2s. The
7 series on the other hand, will use the field in the same way
initially, but seems to lose track of what data is actually being
plugged into the field if the ASE Type 2 is refreshed for any
reason. An example of when this might happen is if an ASE Type
2 is aged, flushed and then relearned and refreshed again. The
External Route Tag field may look fine in an advertisement prior
to and when it is actually flushed, but when a new instance is
generated, bogus data may appear in this field.
CR 9887: During the learning of BGP-3 routes from 2 BGP-3 peers (both
advertising the same routes) router may generate Hogs Bufs errors
in the BGP-3 module leading to PANIC's from other processes
trying to get buffers.
CR 8044: X25 has 6 point to point connections to 6 differnet destinations.
If Connection ID 1 and 2 are used to set up call from A to
destination B. Then you cannot use connection ID 1 and 2 to
set up a call from A to Destination C. From a LAN analyzer once
A connects to B connection ID 1 and 2 are being Used. IF A then
tries to connect C, A will report that it already has a call on
connection ID 1 and 2, dropping the connection from C. This
contradicts The Wellfleet Manual which states that Different
destinations can use the same connection ID.
CR 9477: Learning Bridge sometimes PANICs during momentary period of all
packet buffers on a slot being in use.
CR 9330: Booting the router with configuration that contains import and
export route filters will FAULT continously with 'Watchdog
expired, service terminating' message. This problem was introduced
at revision fix/7.71.4.
CR none: IPX NetBios static routes may now be used to direct a NetBios
propagation packet (type 20) through a network. This done by
setting a NetBios static route filter for a destination server,
and setting wfIpxBaseNovellCertificationConformance to disable (2).
This MIB attribute must be set to 2 in all routers in the network
for this feature to work. This also requires all NetBios
propagation packets to be sent from a client with the destination
network as zero, unless this packet will pass a static route
filter in that router. (Packets are tested against the static
route filters before the destination is checked. This allows
accepting packets that may not have a destination network of
zero, and will allow for redirecting the packet.)
CR None: The configuration of IPX NetBios Static Routes has been improved
to allow the use of partial NetBios server names for static
routes. This partial name will act as a wildcard. Any NetBios
packet that matches this partial name will be sent to the static
route. The MIB attribute 'wfIpxNetBiosStaticRouteEntry' may now
contain names of less than 16 characters. When a NetBios packet
is received, it is compared to this static route name. The
comparison is now done by the length of the static route name.
If the static route name is 5 characters, the FIRST 5 characters
of the NetBios name in the packet is compared to the static route.
This provides wildcard like name matching on the ending portion
of the NetBios server name.
Note: A NetBios static route of length zero will match ALL packets.
CR 9301: The get wfKernelEntry.*.
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