Routing Software Block Diagram - Hitachi GR2000 Series Installation Manual

Browser
Interface
(httpd)
Command group (CLI)
ping, telnet, ftp, boot, log,
show route, show ospf,
config, etc.
Device
Node control, RP control, interface control, duplexed system control common RM control, and logging
control
Boot
IPX/bridge
Relay
Ethernet
Driver
NIF
Figure 2-39 Routing Software Block Diagram
Note 1: Effective only when the basic plus expansion software3 (ROUTE-OS3) is applied.
*
Note 2: Effective only when the basic plus expansion software6 (ROUTE-OS6) is applied.
GR2K-GA-1002
Rev 6.03
Route control processing
SNMP
(GateD)
Agent
RIP, OSPF, BGP, RIPng,
BGP4+ (Note 2) (Unicast)
Kernel (BSD/OS) IPv6 Relay/NDP/IGMPv6 (Note 2)
IP relay/ARP/ICMP
PPP
Frame relay
Driver
Driver
MAC
LSI
IGMP,
DVMRP, PIM
(Multicast)
Crossbar switch (CSW)
Packet forwarding engine
Control of routing/QoS
table search engine
ATM
Driver
NIF
MAC
LSI
Product Overview
Device
RM
MPLS/IP-VPN,
LDP, CR-LPD
(Note 1)
Bridge
Application
Processing
Process
group
IPX
Processing
Kernel
RP
2-39