Looking into Juniper Certs

qp81

Hi Guy,

I'm looking ot jump into JNCIA/JNCIS once I hit CCNP, what kind of routers do I need? I see a few of you here talking about J series...saw some good deals on ebay and was wondering if these would be enough? J2300-1T2FEL-S-AC-US and how many is needed to prepare.....I don't have the resources to setup olive(software wise).

TIA!

rossonieri#1

hi qp

AFAIK, a J2300-1T2FEL-S-AC-US is a T1 router, so unless you have an ISDN emulation box i think the 2-serial model (JJX-2Serial-1SL-S) will be the best thing to get so you can plug it to any serial routers (like cisco 2500/2600). perhaps 3 routers is enough for the JNCIA prep

HTH.

qplayed

wow... ebay has slim pickings for juniper routers...

Aldur

rossonieri#1 wrote: »

hi qp

AFAIK, a J2300-1T2FEL-S-AC-US is a T1 router, so unless you have an ISDN emulation box i think the 2-serial model (JJX-2Serial-1SL-S) will be the best thing to get so you can plug it to any serial routers (like cisco 2500/2600). perhaps 3 routers is enough for the JNCIA prep

HTH.

Actually all my routers in my home lab are T1/FE routers and they work great. To be exact 6 of them are J2300-1T2FEL-S-AC-US and two are of the J4300 variety. The FE's work great for working in a lan setting and the T1's work great for point-to-point connections. All you really have to do to cable up some T1's and plug the routers together back to back with them. And really you can make T1's from you standard cat5 cable as long as you know how to run the coppers

qplayed wrote: »

wow... ebay has slim pickings for juniper routers...

Yea, the pickings can be slim but as long as you can get a J2300 for less then 500 bucks then you're getting a good deal.

Also, I would think that if you had it least 3 routers then you could do some good playing around with JUNOS and get some good labs going. Of course the more the better but I wouldn't recommend getting more then 8 or 9

qp81

i was wondering when you'd chime in thanks i'll see if these babies are still up for grabs

qplayed

looks like i'll be able to run some olives as well...

qp81

@aldur:

waht version of JunOS should I run on these? I picked up 3 new open box J2300 2-FE 2-T1 J2300-1T2FEL-S-AC-US 256D/128F for <$450 form a reseller. I'd like to upgrade the flash, do these use regular CF cards? or should i pickup up as set of JX-CF-256M-S ? thanks

Aldur

qp81 wrote: »

@aldur:

waht version of JunOS should I run on these? I picked up 3 new open box J2300 2-FE 2-T1 J2300-1T2FEL-S-AC-US 256D/128F for <$450 form a reseller. I'd like to upgrade the flash, do these use regular CF cards? or should i pickup up as set of JX-CF-256M-S ? thanks

I would say putting them on any 8.x which is below 8.4. Once you hit 8.4 you'll need to purchase a license to do BGP route reflection and cflowd. Before 8.4 you'll get a warning but the RR or cflowd config will still work just fine. Might have been 8.4 or 8.5 can't remember off the top of my head. I currently have my routers running on 8.0R2 and it works well for IE-ER studies.

Yes, you can use a generic compact flash. However I've been told that the old sandisk CF's work best. I currently have 1gb sandisk's in all my routers. Definitely need that extra storage for logs and upgrading the routers.

Here's a link to ebay for the sandisks that I'm using in my router's.

Lot of 2 x 1GB Sandisk Standard CompactFlash Cards NEW - eBay (item 300325364440 end time Jun-27-09 20:17:01 PDT)

not a bad price for them either, let me know if you have any questions.

qplayed wrote: »

looks like i'll be able to run some olives as well...

definitely qplayed, there are tons of things you can do on olives, I studied through the JNCIP-M with only olives. But if you can cough up the dough for J-series routers then I would recommend that route. Even at that point though I have 3 olives running in my home lab which make good transit, non service-pic enabled routers.

rossonieri#1

aldur,

All you really have to do to cable up some T1's and plug the routers together back to back with them. And really you can make T1's from you standard cat5 cable as long as you know how to run the coppers

sure thing, a crossed-over T1
then, qp - its your turn now to make the back-to-back wiring

imagine what 3 routers can do for the lab? a J2300-1T2FEL-S-AC-US is 2-T1 and 1-FE plus an out of band mgmt which can be included in the scenario.

a triangle shape definitely will be the best thing to learn some dynamic routing,
need a dot1q vlan capable switch to plug the LAN interfaces and do some vlan mgmt, and that L2-L3 services will be there for ER track

Aldur

rossonieri#1 wrote: »

...need a dot1q vlan capable switch to plug the LAN interfaces and do some vlan mgmt, and that L2-L3 services will be there for ER track

That's definitely the best way to do things. I use 1 FE port for OOB management and 1 FE with multiple logical units sliced up by vlans which allows me to specify as many interfaces as I need, I can configure 1 interface or 50 interfaces.

rossonieri#1

a small scenario,

 |----------- T1 ------------|
 |                           |
R0 --- T1 --- R1 --- T1 --- R2
 |             |             |
 |----- v1 ----|---- v2------|

this one looks quite tough
playing with some route metric etc.

by default, a T1 preference will always be lower compares to those ethernet-based link,
hence the routing daemon will always pick the vlan link and how we modify the routing behavior, and we can simulate a back door link etc.

i think its a good one

qp81

what is v1/v2?

Aldur

qp81 wrote: »

what is v1/v2?

I think v1/v2 is referring to vlan 1 and vlan 2.

So on the topology one of R0's Fastether interfaces is a member of v1, one of R1's Fastether interfaces is a member of v1 and v2, which v1 and v2 are contained under separate units/subinterfaces, and one of R2's Fastether interfaces is a member of v2.

This effectively gives you a logical topology in which R0 has a point to point connection with R1 and R2 has a point to point connection with R1.

qp81

this'll be fun.....

Aldur

only if i had this much equipment, only if....