NFD » ndn-cxx

# Packet Tag TypeId Assignments

This page is a registry for type identifiers of Tag derived classes.

Each Tag derived class MUST declare the following static member function:

```cpp

static constexpr int

getTypeId();

```

The return value of those functions SHOULD be registered in the table below.

ID or range           | Usage

--------------------- | ---------------------------------------------------------------------

0~9                   | Reserved for testing

10                    | [[nfd:NDNLPv2]] IncomingFaceId

11                    | [[nfd:NDNLPv2]] NextHopFaceId

12                    | [[nfd:NDNLPv2]] CachePolicy

13                    | [[nfd:NDNLPv2]] CongestionMark

14                    | [[nfd:NDNLPv2]] NonDiscovery

15                    | [[nfd:NDNLPv2]] PrefixAnnouncement

1000                  | Certificate bundle name ([[Certificate Bundle Packet Format]])

1001                  | FinalBlockId of the certificate bundle ([[Certificate Bundle Packet Format]])

1086                  | NDNS CertificateFetcher: IterativeQueryController

0x60000000            | ndnSIM: HopCount

0x60000001~0x6fffffff | Reserved for ndnSIM

9000-9999             | Reserved for private experiments

## Current usage in ndnSIM

ID         | Tag

---------- | ----------------------

0xaee87802 | ns3::ndn::Ns3PacketTag