Installation manual

Part No. T0249-01, Rev A
April, 2002
Known Software Limitations Page 34 of 55
Vanguard 7300 Series CLI setscript with T1/VPMT does not Download
CLI setscript with T1/VPMT does not download after using the “getscript”. CLI
errors occur because the vpmt is configured before the voice port or the t1 port.
(DRFaa16143)
Workaround: If the CLI set script file includes the “create vpmt” statement, move it
behind the create virtual port statement. If the “set minimum-cpu” statement is in the
script file, turn on the debug mode.
Large SDLC-to-LLC2 (SLAC) Calling Addresses - All Products
For incoming X.25 calls over Frame Relay SVC, Vanguard network services updates
the X.25 table with calling address and station ID, interpreting the calling address as
XX...X**. That is, the last two digits are assumed to be sub address and the rest as
node address. For calls using large sub addresses, such as SDLC SLAC station calls,
this leads to a wrong node address. For example, a calling address of 2000822, where
0822 is the sub address, is interpreted as 20008** with 22 as the sub address.
(DRFaa16491)
Workaround: The sub address must be two digits long, or X.25 calls should be made
in one direction only.
Vanguard 7330 Data Buffer Performance
When the number of Data Buffers used reaches a level above the configured WAN
congestion start blocking threshold (default of 89 percent), the throughput of the
node may drop to a very low level until the steady state buffer utilization drops
below the configured stop blocking WAN congestion threshold (default of 86
percent). A number of factors effect the number of buffers used, including the
number of SVCs used and the rate of data transfer through the node. (DRFaa16497)
Workaround: Reduce number of connections (SVCs) or traffic through node in order
to reduce number of buffers used.
Vanguard 7300 Series T3 ATM PMC Card Only Supported in
Slot 1 of the Carrier Expansion Card
Due to the design of the T3 ATM Rear Transition Module, only the top slot of the
Carrier Expansion Card supports the T3 ATM PMC. (DRFaa16824)
Workaround: For information on installing the T3 ATM PMC, refer to the 7300
Installation Manual (Part Number T0185).
V.34 Modem Calls not Connecting - Vanguard 6560, 6400 and
7300 Series
V.34 Modem calls do not consistently connect over Autocall and Transparent
connection types. (DRCaa22907)
Workaround: At present, there is no workaround.
Virtual Links between two OSPF Area Border Routers Fail - Vanguard
7300 Series
Virtual links between two OSPF Area Border Routers do not work properly.
(DRFaa17076)
Workaround: At present, there is no workaround.