Gday Group, Well I spent the morning going through the second lab in Vol2. Not too bad - although I admit not as challenging as Lab1.
################### A couple of questions. Granted there are usually more than 1 way to do things - although I'd like feedback on whether I "broke" the requirements. 1. Task 1.4 One of the requirements was the configure a P2P connection between R3 and R7 (Frame-Relay) but not use sub-interfaces. I took this to mean a PPP Virtual-Template - but the PG shows a simple frame-map statement under the physical interface. I don't think I broke any further requirements. Thoughts? 2. Task 2.4 2.4 in the PG sets the reference cost to 155 but even this won't be enough to prefer ATM over F0/0 from what I could see. Here's the reference bandwidth at 155: 1.2.3.4/24 is the F0/0 interface 200.6.78.7/24 is the ATM1/0.1 interface +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ R6#sh int f0/0 | inc Internet|BW Internet address is 1.2.3.4/24 MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, R6# R6#sh int a1/0.1 | inc Internet|BW Internet address is 200.6.78.6/24 MTU 4470 bytes, BW 155520 Kbit/sec, DLY 80 usec, R6# R6#sh ip ospf inter | inc Add|Cost Internet Address 200.200.200.6/32, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type LOOPBACK, Cost: 1 Internet Address 1.2.3.4/24, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type BROADCAST, Cost: 1 Internet Address 200.6.78.6/24, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type BROADCAST, Cost: 1 R6# R6#sh run | inc router ospf |reference router ospf 1 auto-cost reference-bandwidth 155 R6# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Here's the reference bandwidth at 200 which is the smallest I could find to make it prefer ATM over FastEthernet: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ R6#sh ip ospf inter | inc Add|Cost Internet Address 200.200.200.6/32, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type LOOPBACK, Cost: 1 Internet Address 1.2.3.4/24, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type BROADCAST, Cost: 2 Internet Address 200.6.78.6/24, Area 0 Process ID 1, Router ID 200.200.200.6, Network Type BROADCAST, Cost: 1 R6# R6#sh run | inc router ospf |reference router ospf 1 auto-cost reference-bandwidth 200 R6# +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ So my solution used reference bandwidth of 200 which I think satisfies the requirement given the language of the task. 3. Task 8.2 The solution is using ACL to match ICMP and then matching the ACL in class-map. I just used nbar and match protocol ICMP instead. I figure this is fine. The solution also imposed mpls EXP 3 on the policy inbound from the VPN routers. I set a qos-group and then matched this going into the SP cloud and applied LLQ that way. Again I figure this is okay as it achieves the task. ######################### A couple of observations. 1. Task 2.2 The task states that R2 and R5 should "never" become DIS, however setting their priority will not stop this - just make it less likely! Was this intended to test the candidates knowledge of ISIS to not go looking for something that's not there? 2. Task 2.4 The task states that R6 should never be the DR and ensure R8 is the BDR. The PG changes R6 priority to 0 and R8 to priority 2. I set R7 to 255 and R8 to 254. The PG output shows R7 as the DR but with a priority of 1 - so on a reload - i think the task would break as it's shown in the PG and final-configs. 3. Task 6.8 - This isn't so much about the task now - but my understanding. In earlier tasks we configured some inbound route-map to set local-pref on R2, R5 and I also used weight on R2 and R6 to satisfy requirements. I've read about this command (match mpls-label) http://www.cisco.com/en/US/docs/ios/mpls/command/reference/mp_m1.html#wp1028293 I thought I would need it during these tasks but it seems if we're only setting weights/local-pref to all prefixes being received on inbound route-map, it's not needed. I suspect if we match a specifix prefix using a route-map to set the preference, then this command would be required inbound. I'll play with this some more - but any comments welcome. That's about it. Cheers, Con. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
