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Sunday, October 16, 2011

EVC - using untagged option

1. Port Based - without utilizing any VLAN on the machine

NPE-01#sh running-config interface gigabitEthernet 9/5
interface GigabitEthernet9/5
 description :To CE1
 no ip address
 service instance 10 ethernet
  encapsulation untagged
  xconnect 10.10.1.104 10 encapsulation mpls
 !
end

NPE-01#sh mpls l2transport vc 10
Local intf     Local circuit              Dest address    VC ID      Status   
-------------  -------------------------- --------------- ---------- ----------
Gi9/5          Ethernet:10                10.10.1.104     10         UP

NPE-02#sh run interface gigabitEthernet 9/2
interface GigabitEthernet9/2
 description :To CE2
 no ip address
 speed nonegotiate
 service instance 10 ethernet
  encapsulation untagged
  xconnect 10.10.1.101 10 encapsulation mpls
 !
end

NPE-02#sh mpls l2transport vc 10       

Local intf     Local circuit              Dest address    VC ID      Status   
-------------  -------------------------- --------------- ---------- ----------
Gi9/2          Ethernet:10                10.10.1.101     10         UP

Monday, July 11, 2011

FINALLY a CCIP!

After 1.5 years i finally finished my CCIP.
Praise God for all the strenght and knowledge.

Cleared QoS 642-642

Cleared QoS, just in time for the exam. I was nearly late due to heavy rain but i came 5 minutes before my exam.

Tuesday, June 28, 2011

Cleared 642-691

Hallelujah! Just cleared BGP+MPLS exam.

Materials:
CBT Nuggest BGP
Student Guide Vol.1 and 2

Friday, April 30, 2010

Maipu Certs

Spend 2 weeks in Chengdu to get the MPNA and MPNE certification from MAIPU (CCNA and CCNP equivalent). I'll start BSMCN this may and hopefully get the exam on June.

Monday, March 15, 2010

Road to BSCI - Pass

Got my BSCI today and the result was good.
Preparations: ( Feb.1 - March 15, 2010)
- CBT Nuggets BSCI
- TCP/IP Volume 1
-  PG 3.36

Next week will be switching.

Monday, February 8, 2010

Road to BSCI

Just finished reviewing EIGRP and OSPF. Next up is ISIS, still lagging due to workload.

Sunday, January 24, 2010

CCNA in a MONTH - PASSED

I finally finished my CCNA today.

Preparations: (Dec. 27, 2009 to Jan 25, 2010)
- CBT Nuggets ICND1 and ICND2
- Cisco CCNA Study Guide

 At least 2 topics per day.

By next week I'll be preparing my review materials for BSCI or BGP/MPLS.

Friday, January 22, 2010

CCNA in a MONTH

Started reviewing this jan, exam is on monday. wish me luck.

Sunday, March 30, 2008

MS How To's

Linux How To's

Tutorials

Network Tip No. 40: Show Available Memory

Show Used and Available Memory of your Cisco router or switch

A router can be limited by its available memory. To show the used and available memory,

Router#show proc mem

At the beginning of the output, look for a line like this:

Total: 200234528, Used: 70508188, Free: 129726340

Network Tip No. 39: Show Processor Load

Show proccessor load of your router or switch,which can be limited by its processing power. To show the processor utilization,

Router#show proc cpu
At the beginning of the output, look for a line like this:

CPU utilization for five seconds: 37%/30%; one minute: 39%; five minutes: 40%

Network Tip No. 38: CLI Editing Tips

Learn the command-line editing keys.

Control A Goes to the beginning of the line
Control E Goes to the end of the line
Control K Deletes everything to the right of the cursor
Control P Recalls the previous command in the history buffer
Control N Recalls the next command in the history buffer

Network Tip No. 37: ACL on DNS

No browsing....

A common access-list pitfall is when people forget to allow DNS (Domain Name Servers) from their internal network to the provider's DNS servers. Mainly this is a problem on home or small office routers where you might not have an internal DNS server running.

The following command allows DNS access from your hosts to the outside DNS server. In this example, our outside DNS servers are 192.168.30.11 and 192.168.30.12


access-list 110 permit udp host 192.168.30.11 eq domain any gt 1023
access-list 110 permit udp host 192.168.30.12 eq domain any gt 1023

Network Tip No. 36: ACL on ICMP

Some are having some problems on the ICMP access-list. Try this one

allow pings into the network
access-list 110 permit icmp any any echo
! allow ping responses
access-list 110 permit icmp any any echo-reply
! allow ICMP source-quench
access-list 110 permit icmp any any source-quench
! allow path MTU discovery
access-list 110 permit icmp any any packet-too-big
! allow time-exceeded, which is useful for traceroute
access-list 110 permit icmp any any time-exceeded
! deny all other ICMP packets
access-list 110 deny icmp any any

Network Tip No. 35: Stopping the router from crazy output

  • Stopping the router from crazy output...

    An annoying problem output everytime you mistype a command and the router thinks you just typed a hostname. For example:


    Router#shwo
    Translating "shwo"...domain server (10.1.1.1)
    % Unknown command or computer name, or unable to find computer address
    Router#

    The way to handle this is to change the preferred transport method:


    ! Console port
    line con 0
    transport preferred none
    ! VTY Ports
    line vty 0 5
    transport preferred none

    The output shows the lack of a failed connection based on our mistyped keyword:


    Router#shwo
    ^
    % Invalid input detected at '^' marker.
  • Network Tip No. 34: The reload command

    When everything fails.... hehe


    Router#reload in 3
    Reload scheduled in 3 minutes
    Proceed with reload? [confirm]y

    Wednesday, March 26, 2008

    Linux Tip No. 36: How to Enable IP Forwarding

    Enable IP Forwarding

    1. Check if IP Forwarding is enabled

    Using sysctl:

    [root@proxy ~]# sysctl net.ipv4.ip_forward
    net.ipv4.ip_forward = 0

    or just checking out the value in the /proc system:

    [root@proxy ~]# cat /proc/sys/net/ipv4/ip_forward
    0

    Value 0 means it is disabled.

    2. Enable IP Forwarding on the fly

    [root@proxy ~]#sysctl -w net.ipv4.ip_forward=1

    or

    [root@proxy ~]#echo 1 > /proc/sys/net/ipv4/ip_forward

    the setting is changed instantly; the result will not be preserved after rebooting the system.


    3. Permanent setting using /etc/sysctl.conf

    If we want to make this configuration permanent the best way to do it is using the file /etc/sysctl.conf where we can add a line containing net.ipv4.ip_forward = 1

    [root@proxy ~]#vi /etc/sysctl.conf 
    # Controls IP packet forwarding
    net.ipv4.ip_forward = 1


    if you already have an entry net.ipv4.ip_forward with the value 0 you can change that 1.

    To enable the changes made in sysctl.conf you will need to run the command:

    [root@proxy ~]#sysctl -p /etc/sysctl.conf

    Restart the network service

    [root@proxy ~]#service network restart

    Linux Tip No. 35: Enable service at boot up

    To Check:
    [root@jepoy ~]# chkconfig --list |grep httpd
    httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off

    To enable at boot up:
    [root@jepoy ~]# chkconfig httpd on