MPLS

MPLS

os_ken.lib.packet.mpls.label_from_bin(buf)

Converts binary representation label to integer.

Parameters:buf -- Binary representation of label.
Returns:MPLS Label and BoS bit.
os_ken.lib.packet.mpls.label_to_bin(mpls_label, is_bos=True)

Converts integer label to binary representation.

Parameters:
  • mpls_label -- MPLS Label.
  • is_bos -- BoS bit.
Returns:

Binary representation of label.

class os_ken.lib.packet.mpls.mpls(label=0, exp=0, bsb=1, ttl=255)

MPLS (RFC 3032) header encoder/decoder class.

NOTE: When decoding, this implementation assumes that the inner protocol is IPv4.

An instance has the following attributes at least. Most of them are same to the on-wire counterparts but in host byte order. __init__ takes the corresponding args in this order.

Attribute Description
label Label Value
exp Experimental Use
bsb Bottom of Stack
ttl Time To Live
Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.