Wanna know when this so called bored episode will be ending?, goota tell my God i am having enuff of complicated life - I need to be set free from all these super hot situations do or die. God here am I, i can't take this anymore it is completely hard for me.
I should take a rest maybe make a trip to some isolated places/part of this world, and just enjoy the hol. Playing with my kids is a good idea, as they always ask me a few amazing questions which i can't sometimes answer correctly.
I am planning a trip to hometown very soon, so i may need to spend few days at my favorite places and eat my favorite foods....huh.......God will make a way.
Monday, June 23, 2008
Wednesday, June 11, 2008
OSPF config for the NERD
before you start configure OSPF ip routing cmd need to be enabled on the router
Now from the global configuration prompt type:
# router ospf processID
The Autonomous System number for the OSPF network is 15615. Use this number for the processID. This will create an OSPF routing process on the router. It will also give you a new prompt, the router configuration prompt:
routername(config-router)#
You now need to tell the router which networks it should advertise routes for. This is done with the command
network network_address wildcard_mask area areaID
network_address is the IP address for the network you wish to add. The wildcard_mask is similar to the reverse of the subnet mask. For our purposes where we are using network addresses like 156.156.subnet.host we can use a wildcard_mask of 0.0.0.255
For example:
ospf4(config-router)#network 156.156.32.0 0.0.0.255 area 0
Would tell the router to advertise the network 156.156.128.0. OSPF can be divided into multiple areas, each of which must be connected to the backbone area, area 0. Since we are configuring just four routers to use OSPF we will place them all in the backbone area and thus assign them all to area 0. You should use the network command for each of the networks that the router is connected to and is a part of the OSPF network.
Unless this router is the exit router it will not know how to get to locations outside of the AS. In order to reach these destinations we need to give the router a default route over which the router will send packets that it does not have a route for in the routing table. Type exit to return to global configuration mode. We will now add a static route to the routing table using the command
ip route prefix mask address
where prefix is the address of the network you are creating a route for, mask is the mask for this network, and address is the IP address of the interface you are routing the packets to. For all of the eigrp routers except the exit router (the one connected to the core) use the following command to create the default route.
ospf3(config)# ip route 0.0.0.0 0.0.0.0 156.156.26.2
You have now completed a basic configuration of OSPF on the router!
There are many more configuration options available to you, such as modifying the metrics for each of the interfaces, adjusting the timers and delays for when updates are sent, routes are declared invalid, etc.
You can also turn on or off various features such as authentication and split-horizon. To find out more about other commands just type a question mark at the router configuration prompt or read the references listed at the end of the page.
It would be a good idea to save your configuration! To do this type the following at the privileged mode prompt:
write
This will save the currently running configuration to the NVRAM. If the router gets rebooted for some reason ( it shouldn't happen, but it could!) it will use the configuration that is stored in the NVRAM. So save often!
You can view the currently running configuration by typing:
write terminal
This will print the configuration to the screen, but it will not save it.
to verify the OSPF use the following cmds
# show ip route OSPF processID
# show ip route network
# show ip ospf ?
Now from the global configuration prompt type:
# router ospf processID
The Autonomous System number for the OSPF network is 15615. Use this number for the processID. This will create an OSPF routing process on the router. It will also give you a new prompt, the router configuration prompt:
routername(config-router)#
You now need to tell the router which networks it should advertise routes for. This is done with the command
network network_address wildcard_mask area areaID
network_address is the IP address for the network you wish to add. The wildcard_mask is similar to the reverse of the subnet mask. For our purposes where we are using network addresses like 156.156.subnet.host we can use a wildcard_mask of 0.0.0.255
For example:
ospf4(config-router)#network 156.156.32.0 0.0.0.255 area 0
Would tell the router to advertise the network 156.156.128.0. OSPF can be divided into multiple areas, each of which must be connected to the backbone area, area 0. Since we are configuring just four routers to use OSPF we will place them all in the backbone area and thus assign them all to area 0. You should use the network command for each of the networks that the router is connected to and is a part of the OSPF network.
Unless this router is the exit router it will not know how to get to locations outside of the AS. In order to reach these destinations we need to give the router a default route over which the router will send packets that it does not have a route for in the routing table. Type exit to return to global configuration mode. We will now add a static route to the routing table using the command
ip route prefix mask address
where prefix is the address of the network you are creating a route for, mask is the mask for this network, and address is the IP address of the interface you are routing the packets to. For all of the eigrp routers except the exit router (the one connected to the core) use the following command to create the default route.
ospf3(config)# ip route 0.0.0.0 0.0.0.0 156.156.26.2
You have now completed a basic configuration of OSPF on the router!
There are many more configuration options available to you, such as modifying the metrics for each of the interfaces, adjusting the timers and delays for when updates are sent, routes are declared invalid, etc.
You can also turn on or off various features such as authentication and split-horizon. To find out more about other commands just type a question mark at the router configuration prompt or read the references listed at the end of the page.
It would be a good idea to save your configuration! To do this type the following at the privileged mode prompt:
write
This will save the currently running configuration to the NVRAM. If the router gets rebooted for some reason ( it shouldn't happen, but it could!) it will use the configuration that is stored in the NVRAM. So save often!
You can view the currently running configuration by typing:
write terminal
This will print the configuration to the screen, but it will not save it.
to verify the OSPF use the following cmds
# show ip route OSPF processID
# show ip route network
# show ip ospf ?
eat and sleep MPLS
Multiprotocol Label Switching (MPLS) is a standards-approved technology for speeding up network traffic flow and making it easier to manage.
MPLS involves setting up a specific path for a given sequence of packets, identified by a label put in each packet, thus saving the time needed for a router to look up the address to the next node to forward the packet to.
MPLS is called multiprotocol because it works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and frame relay network protocols. With reference to the standard model for a network (the Open Systems Interconnection, or OSI model), MPLS allows most packets to be forwarded at the layer 2 (switching) level rather than at the layer 3 (routing) level. In addition to moving traffic faster overall, MPLS makes it easy to manage a network for quality of service (QoS). For these reasons, the technique is expected to be readily adopted as networks begin to carry more and different mixtures of traffic.
# show ip protocols - verify routing protocol runs
# show ip route - Ensure that the protocol routes for the MPLS network and all neighbors are present
# show ip cef summary - verify CEF switching
# show ip cef - verify CEF status
# show mpls interfaces - to ensure that MPLS is globally enabled; This command also verifies that a Label Distribution Protocol (LDP) runs on the requested interfaces:
# ping 10.10.10.6 - ping the neighbor
# show tag-switching tdp discovery - verify label distribution
MPLS technology is key to scalable virtual private networks (VPNs) and end-to-end quality of service (QoS), enabling efficient utilization of existing networks to meet future growth and rapid fault correction of link and node failure. The technology also helps deliver highly scalable, differentiated end-to-end IP services with simpler configuration, management, and provisioning for both Internet providers and subscribers.
MPLS involves setting up a specific path for a given sequence of packets, identified by a label put in each packet, thus saving the time needed for a router to look up the address to the next node to forward the packet to.
MPLS is called multiprotocol because it works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and frame relay network protocols. With reference to the standard model for a network (the Open Systems Interconnection, or OSI model), MPLS allows most packets to be forwarded at the layer 2 (switching) level rather than at the layer 3 (routing) level. In addition to moving traffic faster overall, MPLS makes it easy to manage a network for quality of service (QoS). For these reasons, the technique is expected to be readily adopted as networks begin to carry more and different mixtures of traffic.
# show ip protocols - verify routing protocol runs
# show ip route - Ensure that the protocol routes for the MPLS network and all neighbors are present
# show ip cef summary - verify CEF switching
# show ip cef - verify CEF status
# show mpls interfaces - to ensure that MPLS is globally enabled; This command also verifies that a Label Distribution Protocol (LDP) runs on the requested interfaces:
# ping 10.10.10.6 - ping the neighbor
# show tag-switching tdp discovery - verify label distribution
MPLS technology is key to scalable virtual private networks (VPNs) and end-to-end quality of service (QoS), enabling efficient utilization of existing networks to meet future growth and rapid fault correction of link and node failure. The technology also helps deliver highly scalable, differentiated end-to-end IP services with simpler configuration, management, and provisioning for both Internet providers and subscribers.
Tuesday, June 3, 2008
Wah majan ale ne nta nyurat blog
Sibuk ale teka e' minggu ji oyan ke petenup tai kerja alem ji, kado ale kerja da nta lepe lepa. Projek kah e ngan kia, change request chen BP, T/Ticket ngan kado ale pe teka inu da' pelempe' ilu singket tau. but God reminds me everyday even when i'm too busy with my daily routine.
Kumin se' shift pattern minggu ji? maan ale teka' handle kelunan kenta' ilu alo', kina', de' saleng didai ngan kado' pe de ca la-a. Here comes June, time flies, and i am still right here, c'mon move on..
PC1 and PS3 project is still in progress, my kids on school holiday now they are real cool and sometimes very cool to us.
God give me the strength to move on...i am too tired !
Kumin se' shift pattern minggu ji? maan ale teka' handle kelunan kenta' ilu alo', kina', de' saleng didai ngan kado' pe de ca la-a. Here comes June, time flies, and i am still right here, c'mon move on..
PC1 and PS3 project is still in progress, my kids on school holiday now they are real cool and sometimes very cool to us.
God give me the strength to move on...i am too tired !
Subscribe to:
Posts (Atom)
beach
cottesloe beach restaurant
City of Perth
view from King's park
Houston TX
San antonio
