View Full Version : CCIE SPv4.1 PASSED Feedback on Sept 2018

09-22-2018, 03:01 AM
Hi all,
My friend passed SP Lab. This is his feedback detail.

Diag is mixture of diag 1 and 2.
Should understand why you will choose any of the option and study the hint to choose an option.


I got Tsht3.3

1---Bgp Multipath
Got variation 1, only had to add bgp bestpath as-path multipath-relax

2--- Telnet
Question now ask in reverse, telnet from p211 to pe221
pe221 have control-plane for management, something like this
allow ssh
allow telnet

interface.....facing p211
allow ssh
allow telnet

3--- Multicast
same as workbook
the igmp join should souce on interface of pe121....that is eth0/2 for ce307 and eth0/0 for ce301
for mob-ce301
int lo0
ip igmp join-group source ip-address of pe121-eth0/0
the reason for this is cos question will ask to match output that looks like this on pe121
ping vrf mob ------no added source from lo0

question ask to match precedence immediate and internet.

5----OPSF betwwen xyz-pe221 and mob-ce322
mob-ce322 can see ipv6 routes but ipv6=4 has problem

mob-ce322 has two ipv6 address, delete the one that is not necessary.
router ospf 300
router-id <loopback0>
interface loopback0
no ospfv3 300 ipv4 are 0
ip ospf 300 are 0
interface g0/0
no ospfv3 300 ipv4 are 0 --- if have delete it (its ipv4, not ipv6)
ip ospf 300 are 0
ip ospf network point-to-point-to-p

PE221(XR) --
pe221 has two router ospf 17 configured which is for mpls core, also has ospfv3 300 configured, recreate new ospf 300 as below

router ospf 300
vrf MOB
redistribute bgp 17 preserve-med preserve-bgp-defualt-info
are 0
int g0/0/0/2 (towards CE322)
network point-to-point

on bgp, under address-family ipv4 make sure you redistribute the ospf 300

one of dist1-rt and dist2-rt did not have bfd all-interface under isis

router isis 1
bfd all-interface

question is stateless not statefull

enabled nat46 on the interfaces, then i added ipv6 route........../120 gig0/0/0/0

pls study how to configure stateful and stateless, question can come in diff form, understand both ways and how to solve the ticket in both ways

question as to match output of
show isis fast-reroute summary

RP/0/0/CPU0:C4C-NORTH#sh isis fast-reroute summary
Fri Sep 7 23:21:52.463 UTC

IS-IS CORE IPv4 Unicast FRR summary

Critical High Medium Low Total
Priority Priority Priority Priority
Prefixes reachable in L1
All paths protected 0 0 0 0 0
Some paths protected 0 0 0 0 0
Unprotected 0 0 3 6 9
Protection coverage 0.00% 0.00% 0.00% 0.00% 0.00%

looks like that, with some diff value

All i need was to
router isis 1 add ipv4 uni
spf prefix-priority high tag

others are in preconfig

when i run sh isis fast-reroute summary, was able to match the output
please other thing that might not be in preconfig

same as workbook

l2transport was missing under the interface and also encapsulation dot1q....pls check the interface and see what vlan it is to include in the encap dot1q xxx command

same as workbook

Everything other thing is same and i used C4C solution

Thank so much C4C team for help me get number.

09-22-2018, 04:47 AM
Thanks you so much for this feedback

09-30-2018, 12:31 AM
Thanks you so much for this feedback

11-23-2018, 03:45 AM
Thanks for the feedback..can you please share the WB.

05-14-2019, 12:19 AM
Muy importante e interesante este post. se agradece.