ZyXEL NBG334W User Guide - Page 148
Default Bandwidth Management Classes and Priorities
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Chapter 15 Bandwidth Management Table 59 Commonly Used Services SERVICE REXEC(TCP:514) RLOGIN(TCP:513) RTELNET(TCP:107) RTSP(TCP/UDP:554) SFTP(TCP:115) SMTP(TCP:25) SNMP(TCP/UDP:161) SNMP-TRAPS(TCP/UDP:162) SQL-NET(TCP:1521) SSH(TCP/UDP:22) STRM WORKS(UDP:1558) SYSLOG(UDP:514) TACACS(UDP:49) TELNET(TCP:23) TFTP(UDP:69) VDOLIVE(TCP:7000) DESCRIPTION Remote Execution Daemon. Remote Login. Remote Telnet. The Real Time Streaming (media control) Protocol (RTSP) is a remote control for multimedia on the Internet. Simple File Transfer Protocol. Simple Mail Transfer Protocol is the message-exchange standard for the Internet. SMTP enables you to move messages from one e-mail server to another. Simple Network Management Program. Traps for use with the SNMP (RFC:1215). Structured Query Language is an interface to access data on many different types of database systems, including mainframes, midrange systems, UNIX systems and network servers. Secure Shell Remote Login Program. Stream Works Protocol. Syslog allows you to send system logs to a UNIX server. Login Host Protocol used for (Terminal Access Controller Access Control System). Telnet is the login and terminal emulation protocol common on the Internet and in UNIX environments. It operates over TCP/IP networks. Its primary function is to allow users to log into remote host systems. Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP, but uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control Protocol). Another videoconferencing solution. 15.7 Default Bandwidth Management Classes and Priorities If you enable bandwidth management but do not configure a rule for critical traffic like VoIP, the voice traffic may then get delayed due to insufficient bandwidth. With the automatic traffic classifier feature activated, the NBG334W automatically assigns a default bandwidth management class and priority to traffic that does not match any of the user-defined rules. The traffic is classified based on the traffic type. Real-time traffic always gets higher priority over other traffic. The following table shows you the priorities between the three default classes (AutoClass_H, AutoClass_M and Default Class) and user-defined rules. 6 is the highest priority. Table 60 Bandwidth Management Priority with Default Classes CLASS TYPE PRIORITY User-defined with high priority 6 AutoClass_H 5 User-defined with medium priority 4 148 NBG334W User's Guide