# Configuring PMP AP and SM for stable connection with cnMaestro under Huge Traffic

**URL:** https://community.cambiumnetworks.com/t/configuring-pmp-ap-and-sm-for-stable-connection-with-cnmaestro-under-huge-traffic/55243
**Category:** cnMaestro
**Tags:** knowledge-base
**Created:** [March 5, 2018, 11:09am UTC](https://community.cambiumnetworks.com/t/configuring-pmp-ap-and-sm-for-stable-connection-with-cnmaestro-under-huge-traffic/55243 "2018-03-05T11:09:47Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![KR1](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/k/13edae/32.png) [@KR1](https://community.cambiumnetworks.com/u/KR1)
#### Post date: [March 5, 2018, 11:09am UTC](https://community.cambiumnetworks.com/t/configuring-pmp-ap-and-sm-for-stable-connection-with-cnmaestro-under-huge-traffic/55243/1 "2018-03-05T11:09:47Z")

</div>

This KB article provides the details of Configuring PMP AP and SM for stable connection with cnMaestro under Huge Traffic

**Problem Statement :-**

Under huge traffic(If the traffic reaches the full DL/UL ratio settings) then PMP AP/SM looses the connectivity with cnMaestro due to 5 consecutive ping pong loss and will not be able to connect back to cnMaestro

02/22/2018 : 08:05:02 UTC : :PING\_DATA: len=52 msg [{"Message":"ping from device agent","PongLoss": "0"}]  
02/22/2018 : 08:05:02 UTC : :service\_ping: Ping enqueued  
02/22/2018 : 08:05:02 UTC : :Not received PONG for the last ping (1)  
02/22/2018 : 08:05:02 UTC : :send new ping after 15 seconds  
02/22/2018 : 08:05:17 UTC : :ping call back  
02/22/2018 : 08:05:17 UTC : :PING\_DATA: len=52 msg [{"Message":"ping from device agent","PongLoss": "1"}]  
02/22/2018 : 08:05:17 UTC : :service\_ping: Ping enqueued  
02/22/2018 : 08:05:17 UTC : :Not received PONG for the last ping (2)  
02/22/2018 : 08:05:17 UTC : :send new ping after 17 seconds  
02/22/2018 : 08:05:34 UTC : :ping call back  
02/22/2018 : 08:05:34 UTC : :PING\_DATA: len=52 msg [{"Message":"ping from device agent","PongLoss": "2"}]  
02/22/2018 : 08:05:34 UTC : :service\_ping: Ping enqueued  
02/22/2018 : 08:05:34 UTC : :Not received PONG for the last ping (3)  
02/22/2018 : 08:05:34 UTC : :send new ping after 16 seconds  
02/22/2018 : 08:05:50 UTC : :ping call back  
02/22/2018 : 08:05:50 UTC : :PING\_DATA: len=52 msg [{"Message":"ping from device agent","PongLoss": "3"}]  
02/22/2018 : 08:05:50 UTC : :service\_ping: Ping enqueued  
02/22/2018 : 08:05:50 UTC : :Not received PONG for the last ping (4)  
02/22/2018 : 08:05:50 UTC : :send new ping after 19 seconds  
02/22/2018 : 08:06:10 UTC : :ping call back  
02/22/2018 : 08:06:10 UTC : :PING\_DATA: len=52 msg [{"Message":"ping from device agent","PongLoss": "4"}]  
02/22/2018 : 08:06:10 UTC : :service\_ping: Ping enqueued  
02/22/2018 : 08:06:10 UTC : :Not received PONG for the last ping (5)  
02/22/2018 : 08:06:10 UTC : :Missed 5 consecutive PONGS, disconnecting with server  
02/22/2018 : 08:06:10 UTC : :send\_close\_frame\_to\_cnmaestro: Sent CLOSE frame n=24  
02/22/2018 : 08:06:40 UTC : :Websocket not closed destroying  
02/22/2018 : 08:06:40 UTC : :callback\_websocket: LWS\_CALLBACK\_CLOSED

**Solution :-** &nbsp;

Following VLAN and QOS Settings needs to be done in PMP AP and SM to make the cnMAestro connection stable under Huge Traffic

1) In the PMP SM go to&nbsp; **Configuration-\>VLAN** &nbsp;Settings page and under the **VLAN Configuration** &nbsp; , set the **Management VID** to other then VLAN 1&nbsp; and the priority to 7 which is the Highest Priority. By doing this settings under High Traffic , Management Traffic will be given high priority and there will be no cnMaestro connectivity loss . Connection gets lost also, the connection will be re established within 5 minutes.&nbsp;

 ![SMVLANSettings.png](https://d1okf4ta8xniw3.cloudfront.net/original/2X/a/a3a68ca36e7abc0715c7f789cc49b6986582119d.png "SMVLANSettings.png")

2) In the PMP AP go to&nbsp; **Configuration-\>VLAN** &nbsp;Settings page and under the&nbsp; **VLAN Configuration** &nbsp;Enable the VLAN , set the&nbsp; **Management VID** &nbsp;to other then VLAN 1&nbsp; and the priority to 7 which is the Highest Priority. By doing this settings under High Traffic , Management Traffic will be given high priority and there will be no cnMaestro connectivity loss .

Connection gets lost also, the connection will be re established within 5 minutes.&nbsp;

 ![PMPAPVLANSettings.png](https://d1okf4ta8xniw3.cloudfront.net/original/2X/b/b12662007665f3b55c6cf9ae8ad0dc5b9ae23d2e.png "PMPAPVLANSettings.png")

3) In the PMP SM go to **Configuration-\>QOS** Settings page and enable the **High Priority Channel** under the

**Priority Settings in&nbsp;**** 15.1.3 Version**

 ![SMQOSSettings-1.png](https://d1okf4ta8xniw3.cloudfront.net/original/2X/8/80d033b60a71de30a3f2e679151dcc8fe65ba484.png "SMQOSSettings-1.png")

4) In the PMP SM go to&nbsp; **Configuration-\>QOS** &nbsp;Settings page and enable the&nbsp; **Low/Medium/**** High/Ultra High Priority Channels **&nbsp;under the&nbsp;** Priority Settings in&nbsp; ****15.2 Version**

 ![SMQOSSettings.png](https://d1okf4ta8xniw3.cloudfront.net/original/2X/5/5111431985dee4f9fb8a8b30af576117ed013576.png "SMQOSSettings.png")

6) In the PMP AP&nbsp; **Configuration-\>QOS** &nbsp;Settings page and&nbsp;set the **Management Data Priority Level to High** under the **Priority Settings(**Applicable for both 15.1.3 and 15.2 device Software Versions**)**

 ![APQOSSettings.png](https://d1okf4ta8xniw3.cloudfront.net/original/2X/3/31d659587ae705305460be5610bf738948096b3f.png "APQOSSettings.png")