[rt|soo]:[<2-byte AS num>:<4-byte num> | <4-byte IP Address>:<2-byte num> | <4-byte AS num>L:<2-byte num> | <first two bytes of AS num>.<last two bytes of AS num>:<2-byte num>]
The attributes are defined as follows:
rt: route target extended community
type
soo: site of origin extended community
type
<2-byte AS number>: This is a
2-byte AS number; the use of private AS-number is not recommended
<4-byte num>: a 4-byte unsigned
number
<4-byte IP address>: a valid host
IP address; a network address is not accepted; use of private IP address is
not recommended; class-D IP addresses are rejected
<4-byte AS num>: This is a 4-byte
AS number; the use of private AS-number is not recommended
<first two bytes of AS num>: This
is the number represented by the first two bytes of a four-byte AS number.
The use of a private AS-number is not recommended.
<last two bytes of AS num>: This is the number
represented by the last two bytes of a four-byte AS number. The use of a
private AS-number is not recommended
