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RFC 7052, "Locator/ID Separation Protocol (LISP) MIB", October 2013

Source of RFC: lisp (int)
See Also: RFC 7052w/ inline errata

Errata ID: 4235
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Isidor Kouvelas
Date Reported: 2015-01-17
Verifier Name: Brian Haberman
Date Verified: 2015-02-03

Section 7 says:

       Example 3: As an example where LCAF is used, suppose
       that the IPv4 EID-Prefix stored is 192.0.2.0/24 and it
       is part of LISP Instance ID 101.  In this case, the values
       within lispMapCacheEntry would be:

          lispMapCacheEidLength  = 11
          lispMapCacheEid = 16387, 7, 2, 101, 1, 192.0.2.0, 24
          ... [skip] ...

       where 11 is the total length in octets of the next object
       (lispMapCacheEID of type LispAddressType).  Then, the value
       16387 indicates the LCAF AF (see the
       IANA-ADDRESS-FAMILY-NUMBERS-MIB), the value 7 indicates that
       the LCAF AF is 7 octets in length in this case, 2 indicates
       that LCAF Type 2 encoding is used (see the LCAF document), 101
       gives the Instance ID, 1 gives the AFI (per the
       IANA-ADDRESS-FAMILY-NUMBERS-MIB) for an IPv4 address, 192.0.2.0
       is the IPv4 address, and 24 is the mask-length in bits.  Note
       that the lispMapCacheEidLength value of 11 octets is used to
       compute the length of the last field in lispMapCacheEid to be 1
       octet -- as computed by 11 - (2 + 1 + 1 + 1 + 1 + 4) = 1.

It should say:

       Example 3: As an example where LCAF is used, suppose
       that the IPv4 EID-Prefix stored is 192.0.2.0/24 and it
       is part of LISP Instance ID 101.  In this case, the values
       within lispMapCacheEntry would be:

          lispMapCacheEidLength  = 14
          lispMapCacheEid = 16387, 10, 2, 101, 1, 192.0.2.0, 24
          ... [skip] ...

       where 14 is the total length in octets of the next object
       (lispMapCacheEID of type LispAddressType).  Then, the value
       16387 indicates the LCAF AF (see the
       IANA-ADDRESS-FAMILY-NUMBERS-MIB), the value 10 indicates that
       the LCAF AF is 10 octets in length in this case, 2 indicates
       that LCAF Type 2 encoding is used (see the LCAF document), 101
       gives the Instance ID, 1 gives the AFI (per the
       IANA-ADDRESS-FAMILY-NUMBERS-MIB) for an IPv4 address, 192.0.2.0
       is the IPv4 address, and 24 is the mask-length in bits.  Note
       that the lispMapCacheEidLength value of 14 octets is used to
       compute the length of the last field in lispMapCacheEid to be 1
       octet -- as computed by 14 - (2 + 1 + 1 + 3 + 2 + 4) = 1.

Notes:

The Instance ID within the type 2 LCAF is 24 bits and requires 3 octets (incorrectly calculated as 1)
The AFI within the LCAF type 2 requires 2 octets (incorrectly calculated as 1)

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