ip ospf mpls traffic-eng

Answered Question
May 10th, 2010

Is there anybody knows how the maximum bandwidth for an MPLS TS link is calculated? Litterature seems to indicate that it corresponds to interface bandwidth command but I do not think that this is the case.


pauillac#show ip ospf mpls traffic-eng link


OSPF Router with ID (1.1.1.1) (Process ID 100)


Area 0 has 2 MPLS TE links. Area instance is 6.


Links in hash bucket 8.
Link is associated with fragment 1. Link instance is 6
Link connected to Broadcast network
Link ID : 10.1.1.2
Interface Address : 10.1.1.1
Admin Metric te: 1 igp: 1
Maximum bandwidth : 12500000
Maximum reservable bandwidth : 64000
Number of Priority : 8
Priority 0 : 64000 Priority 1 : 64000
Priority 2 : 44250 Priority 3 : 44250
Priority 4 : 44250 Priority 5 : 44250
Priority 6 : 44250 Priority 7 : 44250
Affinity Bit : 0x0

The maximum bandwidth for a 100 Base T interface is 12500000 and 1250000 for a 10 Base T interface. In fact, it seems that the interface bandwidth is multiply by 125.


Thanks Steph1963

Correct Answer by Laurent Aubert about 6 years 9 months ago

Hi Stephane,


This value is in byte not bits. Please check RFC 5305: http://tools.ietf.org/html/rfc5305#page-7


1250000*8=10 000 000 bit/s = 10Mbps


HTH


Laurent.

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