ip ospf mpls traffic-eng

Answered Question
May 10th, 2010
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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 7 years 1 month 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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