Specifications

98 Implementing IBM System Networking 10Gb Ethernet Switches
Summary of packet classifiers
You can use ACLs to classify packets according to various content in the packet header
(such as the source address, destination address, source port number, destination port
number, and others). Once classified, packet flows can be identified for more processing.
You can use regular ACLs, IPv6 ACLs, and VMaps to classify packets based on the following
packet attributes:
򐂰 Ethernet header options (for regular ACLs and VMaps only)
– Source MAC address
– Destination MAC address
– VLAN number and mask
– Ethernet type (ARP, IP, IPv6, MPLS, RARP, and so on)
– Ethernet priority (the IEEE 802.1p priority)
򐂰 IPv4 header options (for regular ACLs and VMaps only)
– Source IPv4 address and subnet mask
– Destination IPv4 address and subnet mask
– Type of Service value
– IP protocol number or name, as shown in Table 2-4
Table 2-4 Well-known protocol types
򐂰 IPv6 header options (for IPv6 ACLs only)
– Source IPv6 address and prefix length
– Destination IPv6 address and prefix length
– Next Header value
– Flow Label value
– Traffic Class value
򐂰 TCP/UDP header options (for all ACLs)
– TCP/UDP application source port and mask, as shown in Table 2-5
– TCP/UDP application destination port, as shown in Table 2-5
Table 2-5 Well-known application ports
Number Protocol name
1ICMP
2IGMP
6TCP
17 UDP
89 OSPF
112 VRRP
Port Application Port Application Port Application
20/udp ftp-data 79 finger 179 bgp
21 FTP 80 HTTP 194 irc
22 SSH 109 POP2 220 imap3
23 Telnet 110 POP3 389 ldap
25 SMTP 111 sunrpc 443 https