>>-VR--=--+-(virtual_route,trans_priority)-----------+--------->< '-(--(--virtual_route,trans_priority--)--)-'
| macroinstructions: | COS |
| dependencies: | see rules following |
Specifies one or more ordered pairs of numbers that must
meet the following rules:
- Each pair must be enclosed within parentheses and must consist of a virtual route number (virtual_route) and a transmission priority indicator number (trans_priority).
- If more than one pair is specified, the entire list must be enclosed within parentheses and each pair must be separated by a comma.
- A virtual route number must be a decimal integer in the range 0–7.
- A transmission priority indicator number must be a decimal integer
in the range 0–2, where:
- 0
- Specifies low-priority session traffic
- 1
- Specifies medium-priority session traffic
- 2
- Specifies high-priority session traffic
- You can specify up to 24 ordered pairs.
- Virtual route selection attempts are performed in the order in which the pairs are specified. The sequence of pairs, therefore, should reflect the route selection order that you want. See z/OS Communications Server: SNA Customization for information on the virtual route selection exit routine.