Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
virtual chassis
|
connect two or more EX switches together to form one unit; each switch serves as a line card or routing engine
|
|
XRE
|
external routing engine; used on EX8200 series
|
|
NSR
|
non stop routing; allows a transparent switchover between REs without requiring restart of routing protocols
|
|
NSB
|
non stop bridging; allows a transparent switchover between REs without requiring restart of L2 protocols
|
|
VCP
|
virtual chassis port; can either be a dedicated port or converted uplink port
|
|
PFE
|
packet forwarding engine; multiple PFEs in a virtual chassis are a backplane
|
|
cabling options
|
daisy-chain ring (5 m max), braided ring (22.5 m max)
|
|
extended VC ring
|
max circumference of ring is 100km; uses 1 or 10 Gb links
|
|
mastership tie breaker
|
1. member with highest priority 2. member previously function as master 3. longest uptime 4. lowest MAC 5. second member in election
|
|
Member ID
|
assigned manually or dynamically from master; preserved through reboots; serves as slot number for interface naming
|
|
VME interface
|
individual mgmt ethernet ports (me0) tied to a mgmt vlan associated with an L3 virtual mgmt interface
|
|
NSSU
|
nonstop software upgrade; used to upgrade SW on all member switches in a VC w/o disrupting traffic
|
|
NSSU requirements
|
ring topology, all members must be running same version of SW, NSR and GRES required
|
|
GRES
|
graceful routing engine switchover
|
|
Inter-chassis packet flow
|
packets always take the shortest path through a virtual chassis
|