<s>
Zebra	O
is	O
a	O
routing	B-Protocol
software	O
package	O
that	O
provides	O
TCP/IP	B-Protocol
based	O
routing	B-Protocol
services	O
with	O
routing	B-Protocol
protocols	I-Protocol
support	O
such	O
as	O
RIP	B-Protocol
,	O
OSPF	B-Protocol
and	O
BGP	B-Protocol
.	O
</s>
<s>
Zebra	O
also	O
supports	O
special	O
BGP	B-Protocol
Route	O
Reflector	O
and	O
Route	O
Server	O
behavior	O
.	O
</s>
<s>
In	O
addition	O
to	O
traditional	O
IPv4	B-Protocol
routing	B-Protocol
protocols	I-Protocol
,	O
Zebra	O
also	O
supports	O
IPv6	B-Protocol
routing	B-Protocol
protocols	I-Protocol
.	O
</s>
<s>
With	O
SNMP	B-Protocol
daemon	O
which	O
supports	O
SMUX	O
protocol	O
,	O
Zebra	O
provides	O
routing	B-Protocol
protocol	I-Protocol
management	O
information	O
bases	O
.	O
</s>
<s>
Zebra	O
uses	O
an	O
advanced	O
software	O
architecture	O
to	O
provide	O
a	O
high	O
quality	O
,	O
multi	O
server	O
routing	B-Protocol
engine	O
.	O
</s>
<s>
Zebra	O
has	O
an	O
interactive	O
user	O
interface	O
for	O
each	O
routing	B-Protocol
protocol	I-Protocol
and	O
supports	O
common	O
client	O
commands	O
.	O
</s>
<s>
Zebra	O
is	O
distributed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
The	O
idea	O
for	O
Zebra	O
originally	O
came	O
from	O
Kunihiro	O
Ishiguro	O
,	O
after	O
he	O
realized	O
the	O
need	O
for	O
quality	O
routing	B-Protocol
software	O
.	O
</s>
<s>
Yoshinari	O
Yoshikawa	O
shared	O
Ishiguro	O
's	O
vision	O
for	O
a	O
new	O
routing	B-Protocol
engine	O
and	O
they	O
combined	O
resources	O
to	O
create	O
the	O
world	O
's	O
first	O
routing	B-Protocol
engine	O
software	O
.	O
</s>
<s>
A	O
new	O
project	O
has	O
emerged	O
as	O
the	O
unofficial	O
successor	O
of	O
Zebra	O
:	O
Quagga	B-Protocol
.	O
</s>
<s>
Worldwide	O
,	O
many	O
Linux/BSD	O
based	O
BGP-routers	B-Protocol
which	O
were	O
using	O
Zebra	O
are	O
switching	O
to	O
Quagga	B-Protocol
.	O
</s>
