| Command | Range of Values | Default Value | Required Action |
| define sna switching node bridgeNumber | Integer (1..15) | 1 | Enter the bridge number for the Passport 4400 unit. This number must be unique for all bridges in the LAN. |
| define sna switching node circuitTimer | Integer (0..65535) | 60 | Enter the maximum time in seconds to reach a target. |
| define sna switching node defRcvWindow | Integer (1..127) | 7 | Enter the default receive window size. |
| define sna switching node defSendWindow | Integer (1..127) | 7 | Enter the default send window size. |
| define sna switching node testConnTimer | Integer (0..65535) | 60 | Enter the maximum time in seconds to establish an SNA connection via the configured LAN ports. |
| define sna switching node virtSegmentLFSize | Integer (516..1536) | 521 | Enter the largest frame size in octets that the switching component can forward on any path through itself. See RFC 2024. |
| define sna switching node virtualRingNum | Integer (1..4095) | 4095 | Enter the virtual ring number in which this switching component resides.
- If a single source routed path (series path) exists between switching nodes (Passport unit to Passport unit), you should configure a unique virtual ring number for each node. In most networks, a series path exists between Passport units.
- If a multiple source routed path (parallel path) exists between switching nodes, you should configure the same virtual ring number for these nodes. This will prevent looping of data.
See the illustration below. |