Brocade Communications Systems Brocade ICX 6650 6650 Manual De Usuario

Chapter

5

ACL-based Rate Limiting

 lists the ACL-based rate limiting features supported on Brocade ICX 6650. These features 

are supported in the Layer 2, edge Layer 3, and full Layer 3 software images, except where 
explicitly noted.

 

ACL-based rate limiting overview

ACL-based rate limiting is a method for restricting inbound IP traffic that was permitted by extended 
IP ACLs, to administrator-configured rates. ACL-based rate limiting is available in the Layer 2 and 
Layer 3 images.

ACL-based rate limiting is defined using traffic policies. To configure ACL-based rate limiting, you 
create a traffic policy, reference the traffic policy in one or more ACL entries, and bind the ACL to an 
interface or port. The traffic policies become effective on ports to which the ACL is bound.

You can configure ACL-based rate limiting on the following interface types:

•

Physical Ethernet interfaces

•

Virtual interfaces

•

Trunk ports

•

Specific VLAN members on a port

•

A subset of ports on a virtual interface

Types of ACL-based rate limiting

ACL-based rate limiting is of two types:

•

Fixed rate limiting – Enforces a strict bandwidth limit. Traffic that exceeds the configured rate 
limit is either dropped or forwarded at the lowest priority level, depending on the action 
specified in the traffic policy. To configure fixed rate limiting, refer to 

TABLE 19

Supported ACL-based rate limiting features

Feature

Brocade ICX 6650

Traffic policies

Yes

ACL-based fixed rate limiting

Yes

ACL-based adaptive rate limiting

Yes

802.1p priority bit inspection in the ACL 
for adaptive rate limiting

Yes

ACL statistics

Yes