Cisco and Networking Acronyms

Links cisco/TLA
VLAN - Virtual lan
- 802.1q
WiFi - Wireless Fidelity
- WPA2 (WPA is an 802.11i)
  - AES - Encryption
- 802.1x (NAC)
- 802.11 b(2.4Ghz-3ch) g n(150) a(5Ghz-12ch) ac
MPLS - Multiprotocol Label Switching
- VRF - Virtual routing and forwarding
  - VRF lite (VRFs without MPLS)
QOS
- policy
Nexus
- Enable individual features in software
  - feature lacp
  - feature vpc
- vPC (virtual port channel)
  - Rules
    - forward a frame received on a member link out any other member link
    - VPC peer link - only used during failure of member link to reach matching member link.
      - Gotcha:
        peer link and OSPF device on vlan, sends ospf traffic to wrong peer(multicast mac) and it is not allowed to forward it to correct peer.
    - peer-keepalive link, keep separate from vPC link, to detect failure and prevent loops.
- fex (Fabric extender)
- port-channel
  - LACP, 802.3ad, 802.1ax, Cisco Etherchannel, NIC teaming
    - LACPDU frames to ensure correct bonding.
WWW
- BGP
- DNS servers.
- DMVPN Dynamic Multipoint VPN - dynamic secure overlay networks.
  1. mGRE - Multipoint. GRE (mGRE)
  2. NHRP - Next-Hop Resolution Protocol.
Voip - Voice over ip
- SIP
- E1 - 31 Channel ISDN
- MGCP - Media Gateway Control Protocol, (MGCP) is a signaling and call control communications protocol.
- SCCP - Skinny Client Control Protocol
- CM - Cisco Unified Communications Manager Version 9.0
- DWDM - Dense wavelength division multiplexing
  - 40 channels at 100 GHz spacing or 80 channels with 50 GHz spacing.
- CWDM
  - provides up to 16 channels across multiple transmission windows
- Gray Lasers
- ADVA -
NFV - network functions virtualization (NFV).
Routing protocols
- BGP
  - BGP-LS - (Was BGP-TE Traffic Engineering)
    - Carry link info in TLV's e.g. BW etc.
      - TLV - Type-length-value
      - NLRI - Network Layer Reachability Information - is exchanged between BGP routers using UPDATE messages
- OSPF
- ISIS
- RIP
- EIGRP ( Cisco Proprietary)

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