17
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
value
: Specifies a VDP keepalive exponent in the range of 14 to 31.
Usage guidelines
The value for VDP keepalive time is expressed by the following equation:
VDP keepalive time (seconds) = 1.5 × [ 2
VDP
keepalive
+ (2 × ECP maximum retransmission time + 1) ×
2
ECP retransmission
] × 10
—
5
For detailed values, see
Table 7
.
Table 7
uses
3
and
16
(the defaults) as the ECP maximum retransmission time and the ECP
retransmission exponent to calculate the VDP keepalive time. These two variables use the larger
values proposed by the station and bridge through EVB TLV.
The network environment and configurations on the EVB bridge and station determine whether to
use the defaults or the actual proposed values for the following ECP values:
•
ECP maximum retransmission time.
•
ECP retransmission exponent.
Table 7 Values for VDP keepalive time
VDP keepalive exponent
Calculated value (seconds)
Result value (seconds)
14 7.12704
8
15 7.37280
8
16 7.86432
8
17 8.84736
9
18 10.81344
11
19 14.7456
15
20 22.60992
23
21 38.33856
39
22 69.795084
70
23 132.7104
133
24 258.53952
259
25 510.19776
511
26 1013.51424
1014
27 2020.1472
2021
28 4033.41312
4034
29 8059.94496
8060
30 16113.00864
16114
31 32219.136
32220
