zebra

1
zebra
Kunihiro Ishiguro ltkunihiro_at_digital-magic.co.jpgt
2
Whats zebra?

• Zebra provide full routing power
• One process per one protocol
• Route Server Route Reflector integrated
• Multithread based technology
• Policy control and filtering

3
BGPd

• Now it can announce routing information!
• Community support is undergoing
• Confederation support is not yet impl.
• AS regular expression match not yet impl.
• No further bgpd-pre-XXX release

4
RIPd

• RIPv1 RIPv2

request reply traceon traceoff poll poll-en
try
finish finish obsolete?
obsolete? developing developing

• RIPng

There is some lines of code for RIPng
5
Interface handling

• We do not use ioctl(sock,SIOCGICONF)
• We use sysctl (mib, MIBSIZ)
• Zebra can handle unlimited number of interface
• Zebra has unlimited size of FD_SETSIZE

6
Zebra architecture
BGPd
RIPd
OSPFd
zebra
UNIX Kernel
7
How about mrt?
Mutex_lock
BGPd
Mutex_lock
RIPd
mrt
Mutex_lock
Mutex_lock
OSPFd
zebra
Mutex_lock
zebra
mrt
8
New world with zebra

• We can develop each protocol daemon separately
• We only need BGPd for Route Server and/or Route
  Reflector.
• We can disable protocol by killing process
• And debug easy.

9
Then.

• Zebra ML (English only)
• Zebra Home Page
• Hurd 0.2 will be out soon. They will change
  interface from C-thread to P-thread
• Until that we develop thread routine under
  Solaris 2.X