Finisar Surveyor 用户手册

11-2

Full decode of multimedia protocols by Multi-QoS provides users with the ability to 

look at any captured packet and understand its contents. Multi-QoS validates that 

the network is performing as it has been configured and helps you troubleshoot 

problems. Multi-QoS provides graphic summaries of Call Jitter, Dropped Packets, 

and Call Set-up Time to view network performance at-a-glance. Point-and-click on 

graphs to see call tables. Click on any call to get complete call details.
Multi-QoS features are only available from Surveyor menus and toolbars when you 

have the Multi-QoS plug-in module.

Multi-QoS recognizes and decodes all major VoIP protocols. Support includes the 
following:

•

H.323 (ITU)
The H.323 suite of protocol specifications created by ITU, including Q.931, 
RAS, H.245, and T.120.

•

SIP (IETF)
The suite of protocols created by IETF, including SIP, SDP, and others.

•

SCCP (Cisco)
Skinny Client Control Protocol (SCCP). SCCP is the proprietary signalling and 
communications protocol in Cisco’s AVVID (Architecture for Voice, Video 
and Integrated Data).

Multi-QoS also recognizes and decodes all major Codec protocols used for VoIP. 
Refer to Table 1-5 for a list of all protocols supported. Check the Finisar web site for 
updates on additional protocol support by Multi-QoS.

Multi-QoS also organizes call information where the signaling protocol is not 
recognized into tables with the protocol type of UNKNOWN.

Multi-QoS works with the complete range of analyzer devices and analyzer cards 
available from Finisar, as well as NDIS-compatible NIC cards. However, it is highly 
recommended that Multi-QoS be used with the THGm/THGs generation of Finisar 
analyzers. These hardware tools provide the hardware buffer sizes, processor 
speeds, and connectivity demanded by real-world network QoS applications.