Port number or well-known port name
Use the TCP or UDP port number required by your
application. The switch also accepts these well-known TCP or UDP port
names as an alternative to their port numbers:
TCP
bgp
,dns
,ftp
,http
,imap4
,ldap
,nntp
,pop2
,pop3
,smtp
,ssl
,telnet
UDP
bootpc
,bootps
,dns
,ntp
,radius
,radius-old
,rip
,snmp
,snmp-trap
,tftp
To list the above names, press the [Shift]+ [?] key combination after entering an operator.