November 2019 M T W T F S S « Feb 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
- Facebook Netops Nanog – FBAR
- AWS Identify and Access Management(IAM)
- SSL/TLS certificates beginner’s tutorial | Talpor Solutions Blog
- Generating device configuration using Ansible and Jinja2
- NetNORAD – Facebook TSHOOT tool
- Accessing HomePC from Anywhere[without traffic passing through a third-party app]
Category Archives: IOS
Formally called as “Performance Routing” (PfR). Takes into account the performance statistics from the edge/border router and route dynamically based on statistics like bandwidth, delay, jitter etc.
RIP: Routing Information Protocol in IOS Distance vector protocol. Routing by rumour. Make sure “ip routing” is enabled.
If a Cisco router fails to load an IOS because of less flash size/register flag/any other reason, it will stuck in the ROMMON mode. 1. To recover, You should have the IOS image in the flash/external disks.
Network Maintenance Models: ITIL – IT Infrastructure Library – Best practice for IT service management. FCAPS – Fault, Configuration, Accounting, Performance and security – ISO model for network maintenance. TMN – Telecommunication Management Network – ITU-T adapted model of FCAPS. … Continue reading
Power over Ethernet (POE): PoE devices like IP phones receive power from the connected switch. The switch can provide power in two different methods: Cisco Inline power (ILP): Cisco proprietary. IEEE 802.3af: Based on IEEE standard.
Software Redundancy: Multilayer switches act as gateway for end users. First Hop Redundancy protocols (FHRP) are available to provide redundancy to end users. FHRP includes;
Three Layer Model: Access layer: Where end users are connected. For intra-vlan routing. Distribution Layer: where access layer switches are aggregated. For inter-VLAN routing Core Layer: where distribution layer switches are aggregated. Center to all users.
Rapid Spanning Tree Protocol IEEE 802.1w defines RSTP. Works based on 802.1d principal concept. BPDU version field set to 2. Root bridge is elected as in 802.1d Port Roles: