CUBE 10.0.0 [IOS 15.4(2)T / IOS-XE 3.12] introduces the concept of Destination Server Group, which supports multiple session targets (up to 5) to be defined in...
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Cisco UC: SIP and TranslatorX
I can’t say how many times I had to configure SIP on Cisco voice gateways, troubleshoot SIP, enable SIP, etc. The second problem, after fear of...
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Templates There is a way to run playbook locally on the PC (generating some files, scripts or configs) using templates. Let’s say there is a template...
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Documentation A good point to start – Ansible User Guide. Network modules (ios/nxos/ios-xr, aci, junos etc) – Module Index – Network Modules IOS/NXOS Command Modules IOS...
Continue reading...Ansible Intro
Automation is everywhere. I decided to take a quick look into Ansible Ansible is the simplest way to automate apps and IT infrastructure using SSH, with...
Continue reading...Cisco NX-OS: VXLAN and External Connectivity
By default: underlay – default VRF overlay – “tenant” VRF, hosts in VXLAN are isolated Border Leafs are used to connect the internal fabric to external...
Continue reading...Cisco NX-OS: VXLAN – vPC – Anycast
VxLAN and vPC Anycast VTEP Problem with VXLAN and vPC: in a vPC both vPC peers duplicate EVPN MAC/IP routes to spine RRs with other attributes equal,...
Continue reading...Cisco NX-OS: VXLAN Symmetric Routing
EVPN Integrated Routing and Bridging (IRB) has two options: Asymmetric IRB (increased ARP cache and CAM table sizes and control plane scaling issue) Symmetric IRB Symmetric...
Continue reading...2019 IT Blog Awards by Cisco
Today I’ve received a badge from Cisco. I made the finalist for the IT Blog Awards 2019 by Cisco in the Best Newcomer category! Discover all...
Continue reading...Cisco NX-OS: VXLAN Asymmetric Routing
EVPN Integrated Routing and Bridging (IRB) has two options: Asymmetric IRB Symmetric IRB Assymetric IRB Ingress VTEP does both L2 and L3 lookup Egress VTEP does...
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