Caution
To use IS-IS Route Tagging on GRT IS-IS routes, you must also configure the metric-type as external. If you want to use IS-IS tags on GRT as internal routes, all Fabric nodes must be above a minimum software version. Any switch in the SPB Fabric that runs earlier software versions triggers an exception if you use metric type internal. To ensure this does not occur, if you attempt to configure a tag and the metric-type is not external, the switch reminds you to upgrade the software on all devices. You must ensure all devices in the network run the minimum required software.
| NOS | Minimum software versions |
|---|---|
| Fabric Engine |
(Future release) 8.10.6 and later (Future release) 9.0.5 and later 9.1 and later |
| VOSS |
(Future release) 8.10.6 and later (Future release) 9.0.5 and later 9.1 and later |
| VSP 8600 Series | (Future release) 8.1.7 and later |