app-class

Related entries

Traffic Class app-class:<class>

SRND is a 12-Class QoS classification model based on RFC 4594, which is very commonly used among enterprises and is well supported in NBAR and in other network elements and services from Cisco. Therefore, the most important and useful attributes are the ones used by the SRND QOS feature by default – traffic-class and business-relevance. Using these values should be as simple as possible, therefore short notations for these values are proposed.

This also aligns with the classification done by APIC-EM Easy QoS app or other SRND 4.0 based QoS provisioning solutions.

Below are the supported values for Traffic Class and Business Relevance, along with the shortcuts and the Business Relevance defaults per class.

 

APPLICATION CLASS APPLICATION CLASS long APPLICATION CLASS short BUSINESS-RELEVANCE DSCP COS WMM QUEUING & DROPPING APPLICATION EXAMPLES
(RFC 4594) DNS-AS-RR (LONG) DNS-AS-RR(SHORT) DNS-AS-RR(SHORT)     802.11e    
VoIP Telephony app-class:VOIP-TELEPHONY app-class:VO business:yes EF Priority Queue (PQ) Cisco IP Phones (G.711, G.729)
Broadcast Video app-class:BROADCAST-VIDEO app-class:BV business:yes CS5 (Optional) PQ Cisco IP Video Surveillance / Cisco Enterprise TV
Real-Time Interactive app-class:REALTIME-INTERACTIVE app-class:RTI business:yes CS4 (Optional) PQ Cisco TelePresence
Multimedia Conferencing app-class:MULTIMEDIA-CONFERENCING app-class:MMC business:yes AF4 BW Queue + DSCP WRED Cisco Jabber, Cisco WebEx
Multimedia Streaming app-class:MULTIMEDIA-STREAMING app-class:MMS business:yes AF3 BW Queue + DSCP WRED Cisco Digital Media System (VoDs)
Network Control app-class:NETWORK-CONTROL app-class:NC business:yes CS6 BW Queue EIGRP, OSPF, BGP, ISIS, HSRP, IKE
Signaling app-class:SIGNALING app-class:CS business:yes CS3 BW Queue SCCP, SIP, H.323
Ops / Admin / Mgmt app-class:OPS-ADMIN-MGMT app-class:OAM business:yes CS2 BW Queue SNMP, SSH, Syslog
Transactional Data app-class:TRANSACTIONAL-DATA app-class:TD business:yes AF2 BW Queue + DSCP WRED ERP Apps, CRM Apps, Database Apps
Bulk Data app-class:BULK-DATA app-class:BD business:yes AF1 BW Queue + DSCP WRED E-mail, FTP, Backup Apps, Content Distribution
Best Effort app-class:BEST-EFFORD app-class:BE business:default DF 0 Default Queue + RED Default Class
Scavenger app-class:SCAVENGER app-class:SCV business:no CS1 0 Min BW Queue (Deferential) YouTube, Netflix, iTunes, BitTorrent, Xbox Live

 

The idea here is to use the same traffic-class name like being used inside the C3PL policy map to move applications seamlessly into the right traffic-class.