RE: help!!!!! [7:60061]
hi priscilla, yes was way off left field there... thanks for pointing it out. i think ill stay clear of making 3am posts. :-) cheers, mark. -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 12:53 PM To: [EMAIL PROTECTED] Subject: RE: help! [7:60061] Vicuna, Mark wrote: it is the dsap mac (cannocial) of the end hosts are pointing to (one of the redundant router(s)). hth, Mark. I don't think it has anything to do with Destination Service Access Points (DSAPs). -Original Message- From: H. [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 5:42 AM To: [EMAIL PROTECTED] Subject: help! [7:60061] Hello, I found a command when doing DLSW Ethernet Redundancy. Can anyone please explain to me what the local-mac value should be... dlsw transparent map local-mac .5432. remote-mac 0200.eca2. neighbor .. Is it the mac of the Ethernet interface of the local router, or the Ethernet host that is connecting to it?? Neither of those. It's an address that you make up, (making sure it fits any addressing schemes you might have and isn't a duplicate of anything else, of course). It is the address that the router uses for the real destination MAC address when an end station sends a TEST frame to a host or other destination. In other words, it is the address that the router is mapping the real destination MAC address to. See here: http://www.cisco.com/warp/public/cc/pd/ibsw/ibdlsw/prodlit/dls12_rg.htm This entire feature is a conglomeration of awful technologies that would have maybe worked despite their complexity, if we hadn't upgraded from hubs to swithces. The problem with switches is that they remember where MAC addresses are and get confused by redundant routers in a DLSw+ environment. To avoid problems, the redundant routers map the destination address to unique addresses that you configure. Unless you really need this feature (or have to learn it for CCIE for some bizarre reason), I would definitely stay clear of it! :-) Priscilla Thanks so much for your help in advance, Best Regards, H. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60098t=60061 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
help!!!!! [7:60061]
Hello, I found a command when doing DLSW Ethernet Redundancy. Can anyone please explain to me what the local-mac value should be... dlsw transparent map local-mac .5432. remote-mac 0200.eca2. neighbor .. Is it the mac of the Ethernet interface of the local router, or the Ethernet host that is connecting to it?? Thanks so much for your help in advance, Best Regards, H. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60061t=60061 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: help!!!!! [7:60061]
it is the dsap mac (cannocial) of the end hosts are pointing to (one of the redundant router(s)). hth, Mark. -Original Message- From: H. [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 5:42 AM To: [EMAIL PROTECTED] Subject: help! [7:60061] Hello, I found a command when doing DLSW Ethernet Redundancy. Can anyone please explain to me what the local-mac value should be... dlsw transparent map local-mac .5432. remote-mac 0200.eca2. neighbor .. Is it the mac of the Ethernet interface of the local router, or the Ethernet host that is connecting to it?? Thanks so much for your help in advance, Best Regards, H. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60065t=60061 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: help!!!!! [7:60061]
Vicuna, Mark wrote: it is the dsap mac (cannocial) of the end hosts are pointing to (one of the redundant router(s)). hth, Mark. I don't think it has anything to do with Destination Service Access Points (DSAPs). -Original Message- From: H. [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 5:42 AM To: [EMAIL PROTECTED] Subject: help! [7:60061] Hello, I found a command when doing DLSW Ethernet Redundancy. Can anyone please explain to me what the local-mac value should be... dlsw transparent map local-mac .5432. remote-mac 0200.eca2. neighbor .. Is it the mac of the Ethernet interface of the local router, or the Ethernet host that is connecting to it?? Neither of those. It's an address that you make up, (making sure it fits any addressing schemes you might have and isn't a duplicate of anything else, of course). It is the address that the router uses for the real destination MAC address when an end station sends a TEST frame to a host or other destination. In other words, it is the address that the router is mapping the real destination MAC address to. See here: http://www.cisco.com/warp/public/cc/pd/ibsw/ibdlsw/prodlit/dls12_rg.htm This entire feature is a conglomeration of awful technologies that would have maybe worked despite their complexity, if we hadn't upgraded from hubs to swithces. The problem with switches is that they remember where MAC addresses are and get confused by redundant routers in a DLSw+ environment. To avoid problems, the redundant routers map the destination address to unique addresses that you configure. Unless you really need this feature (or have to learn it for CCIE for some bizarre reason), I would definitely stay clear of it! :-) Priscilla Thanks so much for your help in advance, Best Regards, H. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60072t=60061 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: help!!!!! [7:60061]
that is what i remember it as when i had read of it a few months back... let me double check.. cheers, Mark -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 12:53 PM To: [EMAIL PROTECTED] Subject: RE: help! [7:60061] Vicuna, Mark wrote: it is the dsap mac (cannocial) of the end hosts are pointing to (one of the redundant router(s)). hth, Mark. I don't think it has anything to do with Destination Service Access Points (DSAPs). -Original Message- From: H. [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 01, 2003 5:42 AM To: [EMAIL PROTECTED] Subject: help! [7:60061] Hello, I found a command when doing DLSW Ethernet Redundancy. Can anyone please explain to me what the local-mac value should be... dlsw transparent map local-mac .5432. remote-mac 0200.eca2. neighbor .. Is it the mac of the Ethernet interface of the local router, or the Ethernet host that is connecting to it?? Neither of those. It's an address that you make up, (making sure it fits any addressing schemes you might have and isn't a duplicate of anything else, of course). It is the address that the router uses for the real destination MAC address when an end station sends a TEST frame to a host or other destination. In other words, it is the address that the router is mapping the real destination MAC address to. See here: http://www.cisco.com/warp/public/cc/pd/ibsw/ibdlsw/prodlit/dls12_rg.htm This entire feature is a conglomeration of awful technologies that would have maybe worked despite their complexity, if we hadn't upgraded from hubs to swithces. The problem with switches is that they remember where MAC addresses are and get confused by redundant routers in a DLSw+ environment. To avoid problems, the redundant routers map the destination address to unique addresses that you configure. Unless you really need this feature (or have to learn it for CCIE for some bizarre reason), I would definitely stay clear of it! :-) Priscilla Thanks so much for your help in advance, Best Regards, H. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60083t=60061 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
