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Jun 1, 2008, 7:29 AM
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[Bug 419] Notification generated for AS_PATHLIMIT attribute with Partial flag set
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http://bugzilla.quagga.net/show_bug.cgi?id=419
paul [at] dishone changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |CLOSED
Resolution| |FIXED
------- Additional Comments From jfletche [at] gmail 2007-11-10 01:57 -------
If an update is received which contains an AS_PATHLIMIT attribute that has the
Partial flag set, a notification is sent, even though both the Optional and
Transitive flags are set. One example is:
Unknown (8 bytes)
Flags: 0xe0 (Optional, Transitive, Partial)
1... .... = Optional
.1.. .... = Transitive
..1. .... = Partial
...0 .... = Regular length
Type code: Unknown (21)
Length: 5 bytes
Unknown (5 bytes)
In this case the Partial flag was set by a router that did not support the
AS_PATHLIMIT attribute.
A small change to bgp_attr_aspathlimit in bgp_attr.c should address this issue:
bgp_attr.c
697c697
< if ((flag & (BGP_ATTR_FLAG_TRANS|BGP_ATTR_FLAG_OPTIONAL)) !=
(BGP_ATTR_FLAG_TRANS|BGP_ATTR_FLAG_OPTIONAL))
---
> if (flag != (BGP_ATTR_FLAG_TRANS|BGP_ATTR_FLAG_OPTIONAL))
------- Additional Comments From paul [at] dishone 2008-06-01 15:29 -------
Applied to CVS, thank you.
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