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ZIP-252: Add a Zebra section

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teor 2021-02-23 18:56:31 +10:00
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@ -138,6 +138,38 @@ The implementation is similar to that for Overwinter which was described in
However, NU5 nodes will have a preference for connecting to other NU5 nodes, so
pre-NU5 nodes will gradually be disconnected in the run up to activation.
Support in Zebra
================
**TODO: Update as needed**
Support for NU5 on testnet will be implemented in Zebra version 1.0.0, which
will advertise protocol version 170012. Support for NU5 on mainnet will be implemented
in Zebra version 2.0.0, which will advertise protocol version 170013.
Backward compatibility in zcashd
--------------------------------
The minimum peer protocol version that NU5-compatible Zebra nodes will connect to
is 170002. However, Zebra will immediately disconnect from nodes with a protocol
version less than:
- 170012 on testnet, or
- 170013 on mainnet.
NU5 deployment for Zebra
--------------------------------
For each network, at the corresponding NU5 activation height, nodes compatible
with NU5 activation on that network will close any new connections with pre-NU5
peers.
Since Zebra maintains a reasonably strict internal request-response protocol,
pre-NU5 nodes will gradually be disconnected after activation. (Nodes are
temporarily disconnected if they send gossip or chain sync hints outside the
strict request-response sequence that Zebra expects.)
References
==========