H3C Technologies H3C Intelligent Management Center - Manual (Page 601)

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{
Link Rate Mode—Select a method to calculate the cost of a mesh link. Options are:
− Fixed—Uses maximum fixed rate of the current radio to calculate the cost of a mesh link.
− Realtime—Uses real-time RSSI to calculate the cost of a mesh link.
{
Probe Request Interval—Set the interval for sending probe requests by an AP. The AP sends
probe requests to scan peer APs, responds to responses, and establishes a neighbor table.
{
Link Hold RSSI—Set the minimum RSSI to allow a link to be formed and held. Once the RSSI
of an active link is smaller than this value, a link switch happens.
{
Link Hold Time—Set the minimum time period for keeping an active link up. Within the link
hold time, an active link remains up even if link switch margin is reached.
{
Link Saturation RSSI—Set the maximum RSSI for an active link. If the value is reached, a link
switch happens.
{
Link Switch Margin—Set the link switch margin. If the RSSI of the new link is greater than that
of the current active link by the link switch margin, an active link switch happens. This
function is supported only on mesh networks of AC application.
NOTE:
The priority of parameters that determine the link switch in ascending order is as follows: link
switch margin, link hold time, and link saturation RSSI/link hold RSSI.
• When the link hold time expires, if the RSSI of the new link is greater than that of the current
active link by the link switch margin, an active link switch happens.
• Within the link hold time, an active link switch does not happen except when the active link RSSI
exceeds the link saturation RSSI, or is below the link hold RSSI.
{
Enable Role Authenticator—Select the option to enable role authenticator. Role authenticator
must be enabled on one of two APs to establish a mesh link. This function is supported only
on mesh networks of an AC application.
{
Enable MLSP—Select the option to enable the MLSP protocol. The link initiation must be
enabled before you enable MLSP. MLSP is used to create and break links during train
movement to ensure an active link is available on a train MP at any given time. When MLSP
is disabled on a radio, the MLSP proxy MAC addresses configured under the current MP
policy are removed. This function is supported only on mesh networks of an AC application.
{
MLSP Proxy MAC Address—Set the MAC address of the device connecting to the MLSP-
enabled fit AP.
Enter a MAC address in the MLSP Proxy MAC Address field, and then click Add to add the
address to the MLSP proxy MAC address list. You can repeat this step to add more MAC
addresses.
To delete a MAC addresses from the address list, select the target MAC address, and then
click Delete.
When a link switchover occurs in a subway mesh network, the train MP, if configured with
MLSP proxy, sends a gratuitous ARP packet so the switch that connects to the rail MP can
quickly update the ARP entry to avoid traffic interruption. This function is supported only on
mesh networks of an AC application.
7. Click OK.