This area lists added capacity and facts to annular out the advantage of the capacity in this chapter.
Unlike best of the Cisco Press Assay Certification Guides, this “Foundation Summary” does not
repeat advice presented in the “Foundation Topics” area of the chapter. Please booty the
time to apprehend and abstraction the capacity in the “Foundation Topics” area of the chapter, as able-bodied as
review items acclaimed with a Key Topic icon.
Table 15-6 summarizes the key standards mentioned in the chapter.
Table 15-7 lists the Cisco IOS commands covered in this chapter.
Table 15-6 Protocols and Standards for Affiliate 18
Topic Standard
Frame Relay Encapsulation RFC 2427
Frame Relay Compression FRF.9
Frame Relay LFI FRF.12, FRF.11-c
Frame Relay Service Interworking FRF.8
Table 15-7 Command Reference for Affiliate 15
Command Mode and Function
frame-relay payload-compression {packet-bypacket
| frf9 stac | data-stream stac}
Subinterface mode; defines the blazon of FR
compression
encapsulation frame-relay [cisco | ietf] Interface mode; enables FR, and chooses one of
two encapsulation types
frame-relay broadcast-queue admeasurement byte-rate
packet-rate
Interface mode; sets the FR advertisement chain size
and rates
frame-relay fragment fragment_size [switched] Map-class mode; enables breach with
fragments of the authentic size
frame-relay fragment fragment-size end-to-end Interface mode; enables interface FR
fragmentation, based on size
frame-relay interface-dlci dlci [ietf | cisco] [ppp
virtual-template-name]
Subinterface mode; assembly a DLCI with the
subinterface, and sets the encapsulation
frame-relay inverse-arp [protocol] [dlci] Interface mode; enables InARP, per Layer 3
protocol and/or DLCI
continues
526 Affiliate 15: Frame Relay
Table 15-8 lists some of the ANSI and ITU standards for Frame Relay.
Memory Builders
The CCIE Routing and Switching accounting exam, like all Cisco CCIE accounting exams, covers a fairly
broad set of topics. This area provides some basal accoutrement to advice you exercise your anamnesis about
some of the broader capacity covered in this chapter.
Command Mode and Function
frame-relay lmi-type {ansi | cisco | q933a} Interface mode; statically configures the LMI type
frame-relay map agreement protocol-address {dlci
| vc-bundle vc-bundle-name}[broadcast] [ietf |
cisco] [payload-compression {packet-by-packet
| frf9 stac | data-stream stac]
Subinterface mode; maps Layer 3 protocol
addresses of adjoining routers to DLCIs along
with added settings associated with the PVC
keepalive time-interval Interface mode; for FR, enables LMI messages
every time interval
protocol agreement {protocol-address | inarp}
[[no] broadcast]
PVC mode; maps a Layer 3 abode to the PVC
under which the command is issued
show abbreviate Displays compression statistics
show frame-relay fragment [interface interface
[dlci]]
Displays breach statistics
show frame-relay map Displays mapping for concrete and multipoint
subinterfaces
Table 15-8 Frame Relay Agreement Specifications
What the Specification Defines ITU Document ANSI Document
Data-link specifications, including LAPF
header/trailer
Q.922 Annex A (Q.922-A) T1.618
PVC management, LMI Q.933 Annex A (Q.933-A) T1.617 Annex D (T1.617-D)
SVC signaling Q.933 T1.617
Multiprotocol encapsulation (originated in
RFC 1490/2427)
Q.933 Annex E (Q.933-E) T1.617 Annex F (T1.617-F)
Table 15-7 Command Reference for Affiliate 15 (Continued)
Memory Builders 527
Fill in Key Tables from Memory
Appendix E, “Key Tables for CCIE Study,” on the CD in the aback of this book contains abandoned sets
of some of the key arbitrary tables in anniversary chapter. Print Appendix E, accredit to this chapter’s tables
in it, and ample in the tables from memory. Accredit to Appendix F, “Solutions for Key Tables for CCIE
Study,” on the CD to analysis your answers.
Definitions
Next, booty a few moments to address bottomward the definitions for the afterward terms:
FRF, VC, PVC, SVC, DTE, DCE, LMI, admission rate, admission link, FRF.9, FRF.5,
FRF.8, Service Interworking, FRF.12, FRF.11-c, VoFR, LAPF, NLPID, DE, FECN,
BECN, Dual FIFO, LZS, DLCI
Refer to the comment to analysis your answers.
Further Reading
■ Troubleshooting Remote Admission Networks, by Dr. Plamen Nedeltchev
■ ISDN and Broadband ISDN with Frame Relay and ATM, by Dr. William Stallings