Token-Ring Backplane Path Display - IBM Nways 8260 Manual

When you assign an 8250 token-ring module to one of the token-ring networks on
the Enhanced TriChannel (tr_8250_1 through tr_8250_7) using the following
command:
SET MODULE {slot.sublsot} NETWORK {token_ring_n}
The 8260 will automatically allocate one of the available token-ring paths to this
module. Note that you can neither choose the path used by the module, nor
determine which path is used by a specific module. However, you can
determine all token-ring paths on the Enhanced TriChannel which are currently
being allocated in your hub by using the following management module
command:
SHOW BACKPLANE_PATHS TOKEN_RING
An example of the output from this command is shown in Figure 6.
Figure 6. Token-Ring Backplane Path Display
The number of token-ring paths used by a single token-ring network on the
Enhanced TriChannel equals the number of token-ring modules on that network.
Note that the token-ring paths on the Enhanced TriChannel use the same pins on
the backplane as are used by the Ethernet and/or FDDI segments. Therefore,
simultaneous configuration of other types of networks in your hub will impact the
number of token-ring networks allowed in your hub. In Figure 6, the token-ring
paths shown as in in use are those backplane pins that are used by other
segment types (that is, Ethernet or FDDI), whereas tr_path_8250_7,
tr_path_8250_9 and tr_path_8250_13 are used to configure a single token-ring
segment (tr_8250_1) consisting of three 8250 token-ring modules. Also, note that
20
8260 Multiprotocol Intelligent Switching Hub
Data-in
Clock-in
Data-out
Clock-out
8260> show backplane_paths token_ring
Physical Path
---------------
TR_PATH_8250_1
TR_PATH_8250_2
TR_PATH_8250_3
TR_PATH_8250_4
TR_PATH_8250_5
TR_PATH_8250_6
TR_PATH_8250_7
TR_PATH_8250_8
TR_PATH_8250_9
TR_PATH_8250_10
TR_PATH_8250_11
TR_PATH_8250_12
TR_PATH_8250_13
TR_PATH_8250_14
TR_PATH_8250_15
8260>
Logical Network
---------------
in use
in use
in use
in use
in use
in use
TR_8250_1
available
TR_8250_1
available
in use
in use
TR_8250_1
available
available