Juniper Default Routes, OSPF LSA TYPES, DEFAULT IMPORT Protocols, and CLI SHORTCUTS

[jason]

DEFAULT ROUTE PREFERENCES IN JUNOS

This is a list of a all default route preferences in JunOS, compared to IOS:

Protocol	Preference (JunOS)	Administrative Distance (IOS)
Local / Direct	0	0
Static + Static LSPs	5	1
RSVP	7
LDP	9
OSPF internal	10	110
ISIS Level 1 internal	15	115
ISIS Level 2 internal	18	115
RIP	100	120
RIPng	100	120
PIM	105
Aggregate	130
OSPF external	150	110
ISIS Level 1 external	160	115
ISIS Level 2 external	165	115
BGP	170	eBGP 20 | iBGP 170
MSDP	175

OSPF LSA TYPES AND SCOPE

This is a summary of OSPF LSA Types and where they are present:

LSA Type/Name	Area 0	Standard Area	Stub Area	NSSA	TSA
1 – Router	x	x	x	x	x
2 – Link	x	x	x	x	x
3 – Network-Summary	x	x	x	x	blocked
4 – ASBR Summary	x	x	not generated	blocked	blocked
5 – AS External	x	x	blocked	blocked	blocked
7 – NSSA external	7 to 5	n/a	n/a	x	n/a

 

DEFAULT IMPORT AND EXPORT POLICIES FOR PROTOCOLS

Default import and export Policies for BGP, IS-IS, OSPF, RIP and RIPng in JunOS.

PROTOCOL	DEFAULT IMPORT POLICY ACTION	DEFAULT EXPORT POLICY ACTION
RIP	Import any IPv4 route to inet.0	No export
RIPng	Import any IPv6 route to inet6.0	No export
IS-IS	Import any IPv4 route to inet.0 and IPv6 route to inet6.0	Export link state database
OSPFv2	Import any route to inet.0	Export link state database
OSPFv3	Import any IPv4 (realm) route to inet.0 and IPv6 route to inet6.0	Export link state database
BGP	Import any learned routes	Export any active BGP route

 

CLI SHORTCUTS

This is a list of the most useful cli shortcuts for faster configuration!

Keyboard sequence	Action
Ctrl+b	Move the cursor back one character.
Esc+b or Alt+b	Move the cursor back one word.
Ctrl+f	Move the cursor forward one character.
Esc+f or Alt+f	Move the cursor forward one word.
Ctrl+a	Move the cursor to the beginning of the command line.
Ctrl+e	Move the cursor to the end of the command line.
Ctrl+h, Delete, or Backspace	Delete the character before the cursor.
Ctrl+d	Delete the character at the cursor.
Ctrl+k	Delete the all characters from the cursor to the end of the command line.
Ctrl+u or Ctrl+x	Delete the all characters from the command line.
Ctrl+w, Esc+Backspace, or Alt+Backspace	Delete the word before the cursor.
Esc+d or Alt+d	Delete the word after the cursor.
Ctrl+y	Insert the most recently deleted text at the cursor.
Ctrl+l	Redraw the current line.
Ctrl+p	Scroll backward through the list of recently executed commands.
Ctrl+n	Scroll forward through the list of recently executed commands.
Ctrl+r	Search the CLI history incrementally in reverse order for lines matching the search string.
Esc+/ or Alt+/	Search the CLI history for words for which the current word is a prefix.
Esc-1 through Esc-9 or Alt-1 through Alt-9	Specify the number of times to execute a keyboard sequence.