Autonomous switching is one of several switching types available. Process switching is the slowest (main system processor has to switch the packets, very slow) and autonomous is one of the faster switching methods (packets match a cache entry and are switched on the interface processor itself). Certain factors determine which switching method(s) are available; for example turning on debugging automatically selects process switching. ACLs also slow things down; ACLs require the router to inspect each packet that comes through an interface. As far as to the specifics of ACLs and switching interaction, I don't have much to offer. Here's a quick primer on switching types:
Check out http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/rbook/rswitch .htm I would recommend "Inside the Cisco IOS Software Architecture" available from Cisco press. http://www.ciscopress.com/catalog/product.asp?product_id={44BD9713-382F-48A1 -B113-E4A8D0FF4F22} > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > mlh > Sent: Thursday, May 09, 2002 8:02 PM > To: [EMAIL PROTECTED] > Subject: what do the following sentences mean? [7:43803] > > > Hi, there, > > Could any body can tell me what the following two sentences mean? > > 1. An interface using an extended IP access list cannot be > autonomously > switched; > > 2. Dynamic access lists cannot be silicon switched and may > affect silicon > switching performance. > > both of them are excerpted from page 880 of Routing TCP/IP vol.1. > > Thanks. > > mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43809&t=43803 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
