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Condition Combinations Configuring QoS

page 26-6 OmniSwitch 6800/6850/9000 Network Configuration Guide June 2006

Condition Combinations

The CLI prevents you from configuring invalid condition combinations that are never allowed; however, it

does allow you to create combinations that are supported in some scenarios. For example, you might

configure source ip and a destination ip for the same condition.

The following conditions are supported and may be combined with other conditions and/or actions:

• Layer 1—source port, source port group, destination port, destination port group.

• Layer 2—source MAC, source MAC group, destination MAC, destination MAC group, 802.1p, ether-

type, source VLAN, destination VLAN (multicast policies only).

• Layer 3—IP protocol, source IP, multicast IP, destination IP, source network group, destination

network group, multicast network group, ToS, DSCP, ICMP type, ICMP code.

• Layer 4—source TCP/UDP port, destination TCP/UDP port, service, service group, TCP flags (except

for ECN and CWR).

• IP Multicast—An IP multicast condition is used in IGMP ACLs. The multicast IP is the multicast

group address used in the IGMP report packet.

Note the following:

• The 802.1p and source VLAN conditions are the only Layer 2 conditions allowed in combination with

Layer 4 conditions.

• The Layer 1 destination port condition only applies to bridged traffic, not routed traffic. This restric-

tion does not apply to the OmniSwitch 6800.

• The IP multicast condition works in combination with Layer 1, Layer 2, and Layer 3 destination condi-

tions only if these conditions specify the device that sends the IGMP report packet.

• Source and destination parameters can be combined in Layer 2, Layer 3, and Layer 4 conditions.

• Individual items and their corresponding groups cannot be combined in the same condition. For exam-

ple, a source IP address cannot be included in a condition with a source IP network group.

• Layer 2 and Layer 3 rules are always effected on bridged and routed traffic. As a result, combining

source or destination TCP/UDP port and IP protocol in a condition is allowed.

• In a given rule, ToS or DSCP may be specified for a condition with priority specified for the action.

Use the following policy condition combinations table as a guide when configuring policy conditions. For

more information about policy action combinations, see “Action Combinations” on page 26-8.

1 2 ... 507 508 509 510 511 512 513 514 515 516 517 ... 701 702

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