FTOS Configuration Guide for the C-Series - Force10 Networks

ACL Resequencing
ACL Resequencing allows you to re-number the rules and remarks in an access or prefix list. The
placement of rules within the list is critical because packets are matched against rules in sequential order.
Use resquencing whenever there is no longer an opportunity to order new rules as desired using current
numbering scheme.
For example, Table 34 contains some rules that are numbered in increments of 1. No new rules can be
placed between these, so apply resequencing to create numbering space, as shown in Table 35. In the same
example, apply resequencing if more than two rules must be placed between rules 7 and 10.
IPv4 and IPv6 ACLs and prefixes and MAC ACLs can be resequenced.
Note: ACL Resequencing does not affect the rules or remarks or the order in which they are applied. It
merely renumbers them so that new rules can be placed within the list as desired.
Table 34 ACL Resequencing Example (Insert New Rules)
seq 5 permit any host 1.1.1.1
seq 6 permit any host 1.1.1.2
seq 7 permit any host 1.1.1.3
seq 10 permit any host 1.1.1.4
Table 35 ACL Resequencing Example (Resequenced)
seq 5 permit any host 1.1.1.1
seq 10 permit any host 1.1.1.2
seq 15 permit any host 1.1.1.3
seq 20 permit any host 1.1.1.4
Resequencing an ACL or Prefix List
Resequencing an ACL or Prefix List is supported on platform e
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