In this exam we will encounter:
+ 3 Drag and Drop Questions
+ Some Multiple Choice Questions
+ 13/14 Troubleshooting Tickets (check them at the right-side menu)
Below is a summary of 14 Tickets you will see in the exam:
||1. Access port not in VLAN 10
|2. Port Channel not allowing VLAN 10
|3. Port Security
||1. HSRP track 10
|2. VLAN filter
|1. Wrong IP of BGP neighbor
|2. NAT – Access list mis-configured
|3. Redistribute access-list
|4. OSPF Authentication
||1. IPv6: enable OSPF
||1. EIGRP – wrong AS
|2. Redistribute (“to” & -> )
|3. DHCP Range mis-configured
|4. EIGRP Passive Interface
Notice that in the exam, the tickets are randomly given so the best way to troubleshooting is to try pinging to all the devices from nearest to farthest from the client until you don’t receive the replies.
In each ticket you will have to answers three types of questions:
+ Which device causes problem
+ Which technology is used
+ How to fix it
One more thing to remember: you can only use “show” commands to find out the problems and you are not allowed to make any changes in the configuration. In fact, in the exam you can not enter the global configuration mode!
Screenshots for your reference:
(Please visit http://www.networktut.com/tshoot-share-your-experience for bigger images)
Also you can find more information about TSHOOT exam in TSHOOT FAQs and Tips.
In this article we will discuss about HSRP and do a lab on it.
Quick reminder about HSRP
+ Hot Standby Router Protocol (HSRP) is a Cisco proprietary protocol.
+ With HSRP, two or more devices support a virtual router with a fictitious MAC address and unique IP address
+ Hosts use this IP address as their default gateway and the MAC address for the Layer 2 header
+ The virtual router’s MAC address is 0000.0c07.ACxx , in which xx is the HSRP group. Multiple groups (virtual routers) are allowed.
+ The Active router forwards traffic. The Standby router is backup and monitors periodic hellos (multicast to 22.214.171.124,
UDP port 1985) to detect a failure of the active router.
+ The active router is chosen because it has the highest HSRP priority (default priority is 100). In case of a tie, the router
with the highest configured IP address wins the election
+ A new router with a higher priority does not cause an election unless it is configured to preempt.
+ Initial: HSRP is not running.
+ Learn: The router does not know the virtual IP address and is waiting to hear from the active router.
+ Listen: The router knows the IP and MAC of the virtual router, but it is not the active or standby router.
+ Speak: Router sends periodic HSRP hellos and participates in the election of the active router.
+ Standby: Router monitors hellos from active router and assumes responsibility if active router fails.
+ Active:Router forwards packets on behalf of the virtual router.
Load balancing traffic across two uplinks to two HSRP routers with a single HSRP group is not possible. The trick is to use two
+ One group assigns an active router to one switch.
+ The other group assigns another active router to the other switch.
(Reference: SWITCH official Certification Guide)
That is all for the boring HSRP theory, let do a lab to understand more about HSRP! We will use the topology below for this lab:
April 30th, 2013
In this lab we will try to run a Frame Relay topology same as the one posted in TSHOOT demo ticket. The logical and physical topologies of this lab are shown below:
Tasks in this lab:
+ Configure static mappings on R1 and R4.
+ Configure point-to-point subinterface on R2 & R3.
+ All routers must be able to ping themselves.
April 29th, 2013
In the previous Frame Relay Point-to-Point Subinterface lab we have set up Layer 2 connection via Frame Relay but only adjacent routers can ping each other. For example R1 can ping R2 and R2 and ping R3 but R1 cannot ping R3. This is because R2 connects with R1 and R3 via point-to-point interfaces and they use separate subnets. In this lab we will use EIGRP to advertise these routes so that “remote” routers can ping each other.
IOS used in this lab: c3640-jk9s-mz.124-16.bin
Tasks for this lab:
+ Configure EIGRP so that R1, R2, R3 and R4 can see and ping each other
+ Configure default route on R1 to 126.96.36.199 of R6
+ Advertise that default route to other routers via EIGRP so that every router can go to the Internet
April 28th, 2013
In this article we will discuss about the configuration on the switches of the TSHOOT Demo ticket. We post the topology here for your reference.