H3C Technologies H3C S6800 Series Switches - Manual (Page 12)

5
To specify a default VSI manager:
Step Command Remarks
1. Enter system view. system-view N/A
2. Specify a default VSI
manager.
evb default-manager { { ip
ip-address | ipv6 ipv6-address |
name name } [ port port-number ] |
local-server }
By default, no default VSI manager
is specified.
Configuring VDP negotiation parameters
After a station sends a VDP request other than a De-Associate request to the bridge, the bridge requests
the VSI interface resources and policies from the VSI manager. If the bridge receives no response from the
VSI manager before the VDP response-wait-delay time expires, the VDP negotiation fails. The VDP
response-wait-delay time on the EVB bridge is calculated as:
VDP response-wait-delay time (seconds) = 2
VDP resource-wait-delay × 10 — 5 .
The value of the VDP resource wait-delay exponent is the larger of the values proposed by the station and
bridge through EVB TLV.
When a Pre-Associate, Pre-Associate with Resource Reservation, or Associate request from a station is
successfully handled, the VSI manager notifies the bridge to create a VSI interface for the corresponding
VM. Then the bridge starts a "VDP keepalive timer" for the VSI interface. If the bridge receives no
keepalive from the station before the timer expires, it releases resources reserved for the association. The
VDP keepalive time is calculated as:
VDP keepalive time (seconds) = 1.5 × [ 2
VDP keepalive + (2 × ECP maximum retransmission time + 1) × 2 ECP
retransmission ] × 10 — 5 .
The value assigned to the VDP keepalive exponent, the ECP maximum retransmission time, and the ECP
retransmission exponent are the larger of the values proposed for each by the station and bridge through
EVB TLV.
To configure VDP negotiation parameters:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
interface interface-type
interface-number
N/A
3. Configure the VDP
resource-wait-delay timer
exponent.
evb vdp timer resource-wait-delay
exponent value
The default is 20.
4. Configure the VDP keepalive
timer exponent. evb vdp timer keepalive exponent
value
The default is 20.