Dell PowerSwitch S4820T 9.50.1 Configuration Guide for the S4820T System - Page 683
PBR Exceptions (Permit), Ineffective PBR Exception due to Low Sequence Number
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PBR Exceptions (Permit) Use the command permit to create an exception to a redirect list. Exceptions are used when a forwarding decision should be based on the routing table rather than a routing policy. Dell Networking OS assigns the first available sequence number to a rule configured without a sequence number and inserts the rule into the PBR CAM region next to the existing entries. Since the order of rules is important, ensure that you configure any necessary sequence numbers. The permit statement is never applied because the redirect list covers all source and destination IP addresses. Ineffective PBR Exception due to Low Sequence Number ip redirect-list rcl0 seq 5 redirect 2.2.2.2 ip any any seq 10 permit ip host 3.3.3.3 any To ensure that the permit statement or PBR exception is effective, use a lower sequence number, as shown below: ip redirect-list rcl0 seq 10 permit ip host 3.3.3.3 any seq 15 redirect 2.2.2.2 ip any any Apply a Redirect-list to an Interface using a Redirect-group IP redirect lists are supported on physical interfaces as well as VLAN and port-channel interfaces. NOTE: When you apply a redirect-list on a port-channel, when traffic is redirected to the next hop and the destination port-channel is shut down, the traffic is dropped. However, on the S-Series, the traffic redirected to the destination port-channel is sometimes switched. Use the following command inINTERFACE mode to apply a redirect list to an interface. Multiple redirectlists can be applied to a redirect-group. It is also possible to create two or more redirect-groups on one interface for backup purposes. Command Syntax Command Mode Purpose ip redirect-group redirect-list-name INTERFACE Apply a redirect list (policy-based routing) to an interface. redirect-list-name is the name of a redirect list to apply to this interface. FORMAT: up to 16 characters Delete the redirect list from this interface with the [no] ip redirect-group command. In this example, the list "xyz" is applied to the tenGigabitEthernet 4/0 interface. Policy-based Routing (PBR) 683
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