Loki

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[Hidden Content] Quick Reference & Good videos for Ansible. It will help for EI Exam Regards, Loki

Nice work ! So what's your conclusion???? I think when physical Interfaces of R11 connected to Sw101 is down then technically Sw102 must become Master for traffic coming from Host11( in Vlan2000). That's why i think the Boolean is not required. I have been trying to explain this.

Cisco ask question like this is tricky. See first you have to achieve Switched roles of Master/Slave(both Lo0s are down). Then consider the Host11 in Vlan 2000. Technically we are tracking both R11 & R12, so assuming Vlan 2000 is down then it should get DHCP IP from Sw102 for Vlan 2000(if Sw102 becomes Master). Again these are all technical point of view. And cisco Always look for that.🙂

@Sachiho: I just don't understand why you are using R11 as the only exit for SW101. Answer: i am not talking about from R11 . From Host11 connected to SW110. R11 anyways does load balancing between Sw101&102 as OSPF is configured. So whether gateway is up or down, it doesn't matter, R11 still Load-balance because OSPF is configured on interfaces and Vlan 2000 & Vlan2001 are passive interface

The default nature of HA is fast switchover of master/Slave. So when Vlan 2000 track is down then it must become slave.( That's what i think) Use my solution and shutdown both the Lo0 interfaces on R11 &R12 . You will find the Result is achieved. Sw0101 becomes Master for Vlan 2001 & Sw102 becomes Master for Vlan2000. Instead of using OR boolean, use AND boolean and see the output. when i get time i'll test again. And for your information the Lab Workbook shared here , i know a guy who failed the exam using the same.

Saw you blog i can point few faults in the solution; For example Sec-1.16 : Router r12 may be used as an internet exit for the FABD2 company network only if neither r23 nor r24 are advertising a default route in OSPF. This requirement must be accomplish exclusively in “router ospf” mode on router r12 without changing the default parameters on routers r23 and r24. The solution is supposed to be implement on R12. And you are using Metric-type1 on R23 and R24 , when it says without changing the default parameters on routers r23 and r24. The solution is wrong. Also R24 is injecting a Default route 0.0.0.0/0 in EIGRP on Tunnel 0 so when you have BGP peering with ISP INTERNET , the default route will be as r>0.0.0.0 in BGP table. So no way DC device will have an E2 default route in OSPF . Think about it. Remove Default-info originate from R12 and R23 and check if R24 is able to inject the default E2 route in OSPF domain.

Hi Guys, saw all of you discussing sec-1.3, especially @bibra, hikaru, siriom, Sachiho As Here is my view when you use Or Boolean for tracking: I used (The Boolean expression enables two types of calculations by using either “and” or “or” operators. which is given as a solution by vendor) and ran a test: On Sw101 Track 100 list Boolean or Object 1 Object 2 ! interface Vlan2000 ip address 10.1.100.2 255.255.255.0 vrrp 100 ip 10.1.100.1 vrrp 100 priority 120 vrrp 100 track 100 On Sw102 Track 101 list Boolean or Object 1 Object 2 ! interface Vlan2000 ip address 10.1.101.2 255.255.255.0 vrrp 101 ip 10.1.101.1 vrrp 101 priority 120 vrrp 100 track 101 SW101#sh vrrp brief Interface Grp Pri Time Own Pre State Master addr Group addr Vl2000 100 120 3531 Y Master 10.1.100.2 10.1.100.1 Vl2001 101 100 3609 Y Backup 10.1.101.3 10.1.101.1 SW102#sh vrrp brief Interface Grp Pri Time Own Pre State Master addr Group addr Vl2000 100 100 3609 Y Backup 10.1.100.2 10.1.100.1 Vl2001 101 120 3531 Y Master 10.1.101.3 10.1.101.1 Now shutdown the interface lo0 on R11 and Check VRRP: SW101#sh track 100 Track 100 List boolean or Boolean OR is Up 2 changes, last change 00:31:04 object 1 Down object 2 Up Tracked by: VRRP Vlan2000 100 Same output for VRRP: SW101#sh vrrp brief Interface Grp Pri Time Own Pre State Master addr Group addr Vl2000 100 120 3531 Y Master 10.1.100.2 10.1.100.1 Vl2001 101 100 3609 Y Backup 10.1.101.3 10.1.101.1 What is the use if traceability to R11(lo0) is down but still SW101 remains the Master for Vlan 2000????? Also, in Section-1.5 once the Host11 & 12 receives IPs from DHCP server then you must check the trace to R11 & R12. When R11 Lo0 is up, the traffic from Host11 is going through Sw101 since it the Gateway via 10.1.100.2 I am tracing interface of R11 facing Sw102: 10.1.13.1 But when Lo0 is down then I get this: host11 still takes path from Sw101 10.1.100.2(Technically incorrect because Gateway is down i.e Vlan 2000) It must go through Sw102 : 10.1.100.3 As questions states that: A router must be declared unreachable as soon as it does not respond to three probes in a row. *Declared Unreachable means what????? It can’t be OSPF So, I think it means that Sw101 must not be the Master, after lo0 on R11 is down. This is normal according to Industry Question does not mention that switches remain master even if one Track is down. So, I personally feel that you must avoid boolean OR (any condition is true will give output true) OR Boolean for Sw101- Vlan 2000: R11 Lo0 - UP R12 Lo0 - UP Master R11 Lo0 - UP R12 Lo0 - Down Master R11 Lo0 - Down R12 Lo0 - UP Master R11 Lo0 - Down R12 Lo0 – Down Slave (Sw102 will be Master) Also, the decrement value must be greater than 10(default), So I used Priority 120 and decrement value 21 then only it will switch over Master/Slave roles. Hope you guys understand. Read the entire Lab Questions. Initially i advertise network 10.1.0.0 in OSPF, which is not required. ip ospf 1 area 0 under OSPF with passive interface for vlan2000 & 2001 Hope you guys agree with me

Is the PDF password protected ? If not then you can use acrobat licensed version to remove it. Or i think there are some software available on Internet

Hi Guys!! I had some free time to look at the Lab file uploaded here with UNL file. Section 1.2 Solution is correct, But i feel for Section 1.3 the solution is incorrect. So did some labbing. Here is the Solution for Section 1.3. I'll try to finish the entire section 1 in a week or so because of time restriction. I am doing this to help the Lab takers. Let's Start technical discussion on Lab. Keep the vendors out of here. Remember that we are a community to help each other. Any suggestions are welcome !!!!! Loki from Asgard [Hidden Content]

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If you have WS-C3850-24T then you can use it for SD-Access. Check this link : [Hidden Content]

Hi Guys!!! I checked the solution provided here by some vendor. I found so many mistakes. Section 1.3 , 1.9, 1.12, 1.13 are wrong solutions(according to the question asked) but they are working. For example: questions says that "DO NOT USE ACL, PREFIX-LIST, ROUTE-TYPES" that means you are not supposed to use these as a part of your solution

@Ram009 SD-Access is not possible without real Device.(since it supports both L2&L3). But if you are just configuring L3 then use any IOS XE image for SD-WAN. DNAC 1.3.1 can be run with Minimum 10 Core & 256 GB RAM. You need a server for that

Nadeem when you import in EVE that time check the start up config tab. go tio devices config file remove the username & password . And save it. Wipe the Node and start. Hope that you know to change the config on Line vty and con also

Traffic Analysis With NetFlow [Hidden Content]

NETCONF & RESTCONF by Keith Bogart [Hidden Content]

Bad Luck robert6alm I saw a file here posted for Lab. I think the Section 1.3 solutions is wrong

Bad Luck robert6alm I saw a file here posted for Lab. I think the Section 1.3 solutions is wrong

A Quick reference for SD-WAN implementation!!! [Hidden Content]

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Ok Glavin. Nice to see you back

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Thanks man. Love it