[c-nsp] VSS and UDLD Aggressive Mode

[Manu Chao]

Is UDLD Aggressive Mode supported in VSS 12.2(33)SXI4?

VSS Interface Gi1/1/1 is connected to a C3750X (interface DOWN, SFP issue
on VSS, 12.2(53)SE2).
I expect VSS interface Gi1/1/1 to be put ErrDisabled but no way, it stayed
UP :(

VSS#show udld gigabitEthernet 1/1/1

Interface Gi1/1/1
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled / in aggressive mode
Current bidirectional state: Unknown
Current operational state: Advertisement
Message interval: 7
Time out interval: 5
No neighbor cache information stored

Any idea?