in search of the cert: lab

Showing posts with label lab. Show all posts

Saturday, January 5, 2013

plan b...

it'll be easier doing it all in hardware... might as well get some use out of my routers...

i've got the equipment...

Friday, December 7, 2012

bottom 2 are l2... then 4x3560's... above is one of my 3550's that i screwed around with gns3 connectivity for a while... that will be replaced with a 3750 soon for proper l2 tunneling... one of the routers is the voice router... 2 more routers and 1 3550, 2x7940 phones, not shown...

i'm planning on cabling it up tomorrow...

core, distribution and access, and as many routers as i can stand with gns3...

rack rentals are not for me... you gotta be in it, to win it, baby... can you say fhrp?

Sunday, July 22, 2012

eigrp lab 2 part 2...

remember this topology replaces a serial cable with an ethernet cable between r1 and r3... my numbers don't macth with the output from the manual... a minor disappointment, but still a disappointment...

according to the lab the composite metric for both links from r3 should be 41024000/40512000...

here's what i got:

r3#sh ip eigrp topo 10.1.102.0/29
IP-EIGRP (AS 100): Topology entry for 10.1.102.0/29
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 40514560
Routing Descriptor Blocks:
10.1.103.1 (FastEthernet0/0), from 10.1.103.1, Send flag is 0x0
      Composite metric is (40514560/40512000), Route is Internal
      Vector metric:
        Minimum bandwidth is 64 Kbit
        Total delay is 20100 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1
10.1.203.2 (Serial0/0), from 10.1.203.2, Send flag is 0x0
      Composite metric is (41024000/40512000), Route is Internal
      Vector metric:
        Minimum bandwidth is 64 Kbit
        Total delay is 40000 microseconds
        Reliability is 255/255
        Load is 7/255
        Minimum MTU is 1500
        Hop count is 1
r3#

the delay is nearly half that of the serial cable... so let's fix it... let's make the ethernet cable a serial cable...

r3(config)#int f0/0
r3(config-if)#delay ?
<1-16777215> Throughput delay (tens of microseconds)

r3(config-if)#delay 2000
r3(config-if)#end

r3#sh ip eigrp topo 10.1.102.0/29
IP-EIGRP (AS 100): Topology entry for 10.1.102.0/29
State is Passive, Query origin flag is 1, 2 Successor(s), FD is 40514560
Routing Descriptor Blocks:
10.1.103.1 (FastEthernet0/0), from 10.1.103.1, Send flag is 0x0
      Composite metric is (41024000/40512000), Route is Internal
      Vector metric:
        Minimum bandwidth is 64 Kbit
        Total delay is 40000 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1
10.1.203.2 (Serial0/0), from 10.1.203.2, Send flag is 0x0
      Composite metric is (41024000/40512000), Route is Internal
      Vector metric:
        Minimum bandwidth is 64 Kbit
        Total delay is 40000 microseconds
        Reliability is 255/255
        Load is 7/255
        Minimum MTU is 1500
        Hop count is 1

note the delay is in tens of microseconds with the interface delay command... i arrived at 2000 because delay is in tens of microseconds, and it was already at 20100... 2000 times 10 is 20000 microseconds plus it's current delay... in other words, i guessed correctly, i can add and multiply and i nailed the sucker...

my metric output for the topology is exactly that of the lab manual...

it's not defining relativity but it's still kinda cool...

Tuesday, April 3, 2012

pvlans, lab in progress...

configuration ongoing... i will add to this as i can... take note of the syntax...
sw3750_02#config t

Enter configuration commands, one per line. End with CNTL/Z.
sw3750_02(config)#vlan 1000
sw3750_02(config-vlan)# private-vlan primary
sw3750_02(config-vlan)# private-vlan association 1012,1034,1055
sw3750_02(config-vlan)#!
sw3750_02(config-vlan)#vlan 1012
sw3750_02(config-vlan)# private-vlan community
sw3750_02(config-vlan)#!
sw3750_02(config-vlan)#vlan 1034
sw3750_02(config-vlan)# private-vlan community
sw3750_02(config-vlan)#!
sw3750_02(config-vlan)#vlan 1055
sw3750_02(config-vlan)# private-vlan isolated
sw3750_02(config-vlan)#interface GigabitEthernet1/0/1

description ---r1
switchport access vlan 10
switchport private-vlan host-association 1000 1012
switchport mode private-vlan host
spanning-tree portfast

interface GigabitEthernet1/0/3

description ---r3
switchport access vlan 10
switchport private-vlan host-association 1000 1034
switchport mode private-vlan host
spanning-tree portfast

interface GigabitEthernet1/0/5

description == R5
switchport access vlan 10
switchport private-vlan host-association 1000 1055
switchport mode private-vlan host
spanning-tree portfast

do the same for switch 1

then

sw3750_01#sh vlan id 1000

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1000 VLAN1000 active Po1, Po2

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1000 enet 101000 1500 - - - - - 0 0
Remote SPAN VLAN
----------------
Disabled

Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
1000 1012 community Gi1/0/1
1000 1034 community Gi1/0/3
1000 1055 isolated Gi1/0/5

and switch 2

sw3750_02#sh vlan id 1000

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1000 VLAN1000 active Po1, Po2

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1000 enet 101000 1500 - - - - - 0 0

Remote SPAN VLAN
----------------
Disabled

Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
1000 1012 community Gi1/0/1
1000 1034 community Gi1/0/3
1000 1055 isolated Gi1/0/5

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