Link to home
Start Free TrialLog in
Avatar of David Whyte
David WhyteFlag for United Kingdom of Great Britain and Northern Ireland

asked on

Configure VOIP on SG200-50 50-Port Gigabit Smart Switch

Hi,

Ive been given the following to configure on the above network switch for our SIP/VOIP BT Cloud Voice service, can anyone assist on how I can get this done? I have no CISCO OS knowledge but have gained access into the switches gui so just need to implement the rules below.

The BT Cloud Voice Handsets are already live and on the network and they are have PC's also plugged into the pass through ports in most cases.

qos tcp-port 5060 dscp 011000
qos udp-port 5060 dscp 011000
qos type-of-service diff-services
qos dscp-map 101110 priority 5
qos dscp-map 100010 priority 4

qos device-priority 62.239.32.224/28 priority 5            
qos device-priority 62.239.32.240/28 priority 5              
qos device-priority 147.152.35.104/29 priority 5          
qos device-priority 147.152.35.96/29 priority 5                        
qos device-priority 62.7.201.128/27 priority 5
qos device-priority 62.7.201.160/27 priority 5
qos device-priority 213.120.60.128/25 priority 5

Thanks
SycamoreIT
Avatar of max_the_king
max_the_king

Hi,
I believe you'll do it quicker and easier by issuing those lines via command line.

You need to enable (if it isn't already) telnet and/or ssh and connect to switch via command line.

once there:

1. enable
2. <write enable password)
3. conf t
4. <your prompt will change in config mode>
5. paste the lines you've been given
6. exit
7. copy running start
exit

you're done

hope this helps
max
Avatar of David Whyte

ASKER

Telnet is not enabled by default and is not supported for the switch in question. I followed this https://supportforums.cisco.com/discussion/12389791/enabling-telnet-sg200-50fp but when it downloaded the config text file instead of allowing me to save it, opened in Chrome as an xml file.

Any other way of doing what is required to get these commands setup?
Hi,
true ... your model hasn't got CLI ... too bad.

I guess your only chance is to try and do something with webgui; here is help for basic settings ...
https://www.mcbsys.com/blog/2011/05/basic-qos-setup-on-a-cisco-sg-200-switch/

you may as well try and ask BT what is proper requested configuration fro your particular switch model and if it is supported.

max
I guess Im stuffed, that article is way over my head. My phones are not on dedicated ports since the PC's are slaved off the phone so I cannot configure the dedicated ports.

Ive asked BT and they have told me to get in touch with CISCO but I dont have a support contract. This is not good.
by using firefox instead of chrome, Ive been able to pull down the txt file and edit it as per web link but when I upload it I get error.

Download/Backup Configuration/Log
Bytes Transferred:       512
Status:       Copy failed
Error Message:       Copy: Copy completed with errors.

I tired running telnet as per the web document to see if it worked anyway but it did not.

Here is the contentfrom the txt file

config-file-header
switchbbc123
v1.3.0.62 / R750_NIK_1_3_647_260
CLI v1.0
set system
file SSD indicator excluded
@
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname switchbbc123
username cisco password encrypted d2fca3fc61abace8775e76fcd0335b0f1eb73da8 privilege 15
ip telnet server !

Any ideas guys?
Commonly, Cisco especially sg as you see they auto tag voice devices to the voice vlan, and are commonly prioritized by default over other traffic. Presumably the qos recommendations from the provider.

Are you currently experiencing voice issues, stTter, jittery, etc?

Add one of those and see the entry in the config.

The QoS entries you need are actually nor on the switch but shoukd be implemented on your router to shape/prioritize voice related data traffic ahead of everything else.
We are currently not experiencing stutter or jittery etc, just a lack of call clarity. BT have asked us to setup the QoS rules on the switch before they will even consider looking further into the problem with call clarity - personally, I just can see if this process will improve the call clarity.

The list of QoS commands are from BT and they have told us to put it onto the Cisco Switch. I can confirm we have already done the firewall so just the switch to go now.

So are you saying to download the config.txt file and add one of those lines in and then upload the file back to the switch - any chance that could render the switch unaccessible? Im not onsite so Im mindful of making such changes remotely.
Presumably this means BT is providing/configured your router?

I think the link to add the qos policy to the switch.
It might be better to group the services/ports and then setup one qos for the group.
Similarly group the IPs into one object and set it under the qos. This way when an ip is added, all you would need is to add it into the group...
No we own the router (Draytek) and this has been configured. Just need to add the QoS to the switch now but I have no experience doing this sort of thing.
ASKER CERTIFIED SOLUTION
Avatar of arnold
arnold
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
thank you