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Last three days for the November 10 days Online CCDE Bootcamp ! By November 1, I am going to start my NEW CCDE Practical Lab Training. There are couple things to highlight. Online Bootcamp is Instructor-Led Bootcamp. I will be in the class and explain everything you need to pass the CCDE Practical exam. Instructor Led doesn’t […]
The post Last Three days for the 10 days Online CCDE Practical Bootcamp appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
We did a podcast describing NAPALM, an open-source multi-vendor abstraction library, a while ago, and as the project made significant progress in the meantime, it was time for a short update.
NAPALM started as a library that abstracted the intricacies of network device configuration management. Initially it supported configuration replace and merge; in the meantime, they added support for diffs and rollbacks
Read more ... Public cloud is so good, it's almost boring.
SNMP was not designed with VRFs in mind. Querying the routing table via SNMP did not take into account the idea of having multiple routing tables. But clearly it’s something people want to do, so some clever engineers figured out how to shoe-horn VRF contexts in. This week a customer asked me how to query the routing table for the non-default VRF on Brocade VDX switches. Here’s how to do it:
For this lab I have Loopback 1 in the default VRF, with an IP of 50.50.50.50/32. I’ve created another VRF called “internet”, and put Loopback 2 in that VRF, with IP 60.60.60.60/32. Now I have two different routing tables:
VDX6940-204063# sh run rb 1 int loop 1 rbridge-id 1 interface Loopback 1 no shutdown ip address 50.50.50.50/32 ! ! VDX6940-204063# sh ip route Total number of IP routes: 1 Type Codes - B:BGP D:Connected O:OSPF S:Static U:Unnumbered +:Leaked route; Cost - Dist/Metric BGP Codes - i:iBGP e:eBGP OSPF Codes - Continue reading
SNMP was not designed with VRFs in mind. Querying the routing table via SNMP did not take into account the idea of having multiple routing tables. But clearly it’s something people want to do, so some clever engineers figured out how to shoe-horn VRF contexts in. This week a customer asked me how to query the routing table for the non-default VRF on Brocade VDX switches. Here’s how to do it:
For this lab I have Loopback 1 in the default VRF, with an IP of 50.50.50.50/32. I’ve created another VRF called “internet”, and put Loopback 2 in that VRF, with IP 60.60.60.60/32. Now I have two different routing tables:
VDX6940-204063# sh run rb 1 int loop 1
rbridge-id 1
interface Loopback 1
no shutdown
ip address 50.50.50.50/32
!
!
VDX6940-204063# sh ip route
Total number of IP routes: 1
Type Codes - B:BGP D:Connected O:OSPF S:Static U:Unnumbered +:Leaked route; Cost - Dist/Metric
BGP Codes - i:iBGP e:eBGP
OSPF Codes - Continue reading
Cisco says SD-WAN should be viewed as an addition to MPLS, not a replacement.
Fortinet recently restructured its sales team.
The combination of these two telecom firms could create some interesting strengths in virtualized networking.