Osi Virtual Routers; T–Td Protocol Flow; Ft–Td Protocol Flow - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

Chapter 13 Management Network Connectivity
Figure 13-24
UDP
•
Figure 13-25
OSS
FTP File
Server
The ONS 15454 uses FT–TD for the following file transfer processes:
•
•
•

13.6.7 OSI Virtual Routers

The ONS 15454 supports three OSI virtual routers. The routers are provisioned on the Provisioning >
OSI > Routers tab, shown in
78-18106-01
T–TD Protocol Flow
OSS
TL1 TL1 Gateway
TL1
TCP UDP TCP
IPv4 IPv4
LLC1 LLC1
LAN LAN
FT–TD—Performs an FTP conversion between FTAM and FTP. The FT–TD gateway entity includes
an FTAM responder (server) and an FTP client, allowing FTAM initiators (clients) to store, retrieve,
or delete files from an FTP server. The FT–TD gateway is unidirectional and is driven by the FTAM
initiator. The FT–TD FTAM responder exchanges messages with the FTAM initiator over the full
OSI stack. Figure 13-25 shows the FT–TD protocol flow.
FT–TD Protocol Flow
GNE
FT-TD
FTP / IP
FTP
Client
Software downloads
Database backups and restores
Cisco IOS configuration backups and restores for ML and ML2 Series cards.
Figure
GNE
ACSE
Presentation Presentation
Session
TP4
ISIS / CLNS ISIS / CLNS
LAPD
DCC
ENE
FTAM / OSI
FTAM
Initiator
FTAM
Responder
13-26.
Cisco ONS 15454 Reference Manual, R8.5
13.6.7 OSI Virtual Routers
ENE
TL1 Gateway
ACSE TL1
Session
TP4
LAPD
DCC
13-41