Single-mode vs. Multi-mode
Aside from the usual color coding for single-mode (yellow) and multi-mode (orange), how can we check if a fiber optic cable is using these modes ? Any hints ?
View ArticlePSTN Phone Help
Hello I need help please , i tried many times to register PSTN Phone using ( Cisco IPC & INE Rack phone on f0/4) without any result. For IPC i added it manually on PSTN router , but it can not...
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RIP/RIPng metric increment?
diagramhttps://learningnetwork.cisco.com/servlet/JiveServlet/showImage/2-318242-185184/screenshot.pngWhy is RIPng advertising connected interface to other RIP routers on the same link with a metric of...
View Article3.3 IPv6 Summary Route
Hi, Could someone please explain why the SG uses a 2001:200::/22 as a summary. The summary route will always be 2001::/22 as the '2' won't be matched by the mask. If the mask was /23 then i'd...
View Article10.2 mtu vs ip mtu command
Hi there,While doing the QOS 10.2 WFQ section, I configured the serial with the following config : r4 r5int s0/1 clock rate 128000 bandwidth 128000 hold-queue 256 out tx-ring-limit 1 mtu 160...
View ArticleAny one else going to the lab in 3-4 months
My first lab attempt is in 93 days. I'm looking for someone in a similar situation to exchange emails with and prepare with. I did this before my R/S exam and it helped a lot with staying motivated.I...
View ArticleStudy method - is this a waste of time or a good idea?
I read Petr's post on How to Study for Your CCIE and really liked the spaced repetition concepts, which I have been using. I recently started adding DOC-CD config guide locations to my Lab Commands...
View Article10.52 - shape adaptive - required or no?
I'm trying to determine why the "shape adaptive" command was used in this configuration. There's nothing noting that the router needs to trottle down to CIR if BECNs are recieved.Task 10.50...
View Articlelab 3, task 4.8 ospf loopback advertisement
Hi All,Im just wondering about this answer for the part of Area 3 range 150.1.3.0 255.255.255.0.in the question on 3rd bullet of task 4.8 says this network should be associated with an ospf area. but...
View Article1.3 Traffic Filtering - Alternative Solution
Came up with mine a bit differently . . . Any issues?SW1mac access-list extended PERMITpermit host 0000.0c12.3456 any!int fa0/5mac access-group PERMIT in
View ArticleCCIE VOICE 29-07
Hi all, Anybody taking the CCIE VOICE in Brussels next monday?I'll be there :-) smaikol
View ArticleShape Average vs. Shape Peak when SLA has PIR and CIR
Hello All!I've seen Petr's great article on how "Shape Peak" works. But I think what confuses me the most is the difference between using “shape average” and “shape peak” when you are in a contract...
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HSRP
Hi guys,see the image above,considering that the link between sw1 and DSW1 has failed,DSW1 and DSW2 are l3 switches with SVI's and the vlan 30 wants to communicate with a host on vlan 10,vlan 30...
View ArticleTask 2.2 OSPF Neighbors
My rack is behaving differently from SG. BB2 is elected DR for the broadcast domain, thus peering between R1 and R2 is only 2 way as long BB2 is up. Once link to BB2 is shut down on R2, only then will...
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HSRP
Hi guys,see the image above,considering that the link between sw1 and DSW1 has failed,DSW1 and DSW2 are l3 switches with SVI's and the vlan 30 wants to communicate with a host on vlan 10,vlan 30 will...
View Article7.36 BGP Communities
Just curious...This lab instructs us to configure inbound route-maps on both R3 and R5 to match the community value of 200:200 and manipulate all of the prefixes that were originated in AS60 with a...
View ArticleQoS command output issues (10.23/10.22/10.21 and 10.20)
As I got further and further into QoS I began to notice the output in the book does not match the output at the prompt, ie: INE Vol1 WB 10.23 MQC Class-Based GTS and CBWFQ:class-map match-all HTTP...
View Article7.39 Community - No-Export
R2 uses a route-map and takes all the traffic coming from AS 254 and tags it with the no-export community label and then it sends the community to R3 (155.1.23.3) and R5 (155.1.0.5) using the...
View ArticleUsing ACLs to match HTTP traffic vs using NBAR - same difference ? :/
Going through the solution guide for QOS, I saw several occasions where HTTP traffic is sometimes matched using an extended acl matching port 80 or using match protcol http (nbar)I know NBAR gives...
View ArticleTask 10.6: MLP LFI configuration - Using Multilink intf Vs Virtual Template
Hello all, As per the WBI solution for this task, the MLP is achieved using a virtual template configuration. Since this is not an FR MLP config, same result could be achieved using a multilink...
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