Good CCIE Written web reference [7:61698]

2003-01-25 Thread John Humphrey
Anybody recommend a good web reference for the 350-001 test? I've read multiple manuals and taken a number of the Boson practice tests, but I still feel a little under-prepared. Any recommendations would be appreciated (especially from someone who has passed the exam). jh Message Posted at: http

Re: bandwidth problem on cisco routers!!! [7:61556]

2003-01-22 Thread John Humphrey
In my humble opinion, cef should not interfere with any of your qos commands (if anything it helps). As a matter of fact CEF is required when using certain types of class/policy maps. It sounds to me like custom queuing would better suit your needs. You probably already know this but custom que

RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]

2003-01-22 Thread John Humphrey
I've encountered this issue in our production environment with policy-maps. Here's the answer Cisco's TAC gave me. Since the msfc interfaces are software based, the MLS engine will bypass the route processor on most of your layer 3 packets. This prevents the shaping/policing policy from being appli

RE: CCIE Written Study Material [7:61026]

2003-01-14 Thread John Humphrey
I highly recommend Bruce Caslow's "Bridges, Routers & Switches for CCIEs". This book is the best I've seen. I've also heard good things about "Internet Routing Architectures" and "Routing TCP/IP" by Jeff Doyle. Hope this helps and GOOD LUCK on your studies. Message Posted at: http://www.groupstud

Bridging and STP issue [7:61031]

2003-01-14 Thread John Humphrey
Does anyone know which version of IEEE STP bridge-groups use? Switches use the PVST+ (one spanning tree per vlan). However, I can't determine if router bridge-groups use PVST+ or the IEEE standard CST (one spanning tree instance for all vlans). Here's my delimna: I've got a 4006 (Sup II) with a Lay

RE: QoS suggestion [7:60994]

2003-01-14 Thread John Humphrey
i don't see any obvious problems with your configuration. I can, however, offer a couple of troubleshooting tips. I would start by checking out the access list ("show access-list") to make sure you have packets that qualify. Second (and this is where I think your problem is), I would lose the "matc

RE: QoS suggestion [7:60994]

2003-01-14 Thread John Humphrey
forgot to add one thing you probably already know this but if you decide to use LLQ for a PPP serial connection (like a t1 or frac t1) you will want to implement LFI (link fragmentation and interleave). this means that your config will be implemented on a "multilink1" interface rather than

RE: QoS suggestion [7:60994]

2003-01-14 Thread John Humphrey
You've got a few options. The most basic (and most limited) is using IP RTP Priority. The will prioritize all RTP traffic on the applied interface. The best solution (IMHO) is to use LLQ. Low Latency Queueing can be thought of as CB-WFQ with the added benefit of a priority queue. This is probably w

RE: ip multicast [7:60813]

2003-01-13 Thread John Humphrey
239.0.0.0 thru 239.255.255.255 make up the multicast limited scope (224.0.0.1-238.255.255.255 are classified as globally scoped meaning that these are taken up by various protocols/applications). As far as I know, there is no CIDR/subnet mask notation for addresses in the Class D space. You can ass