IPv6 Address Behavior
* Manually configured link-local addresses do not have a higher priority than automatically generated ones; they coexist and are equally preferred for local communication.
* The other statements are true:
* A. Link-local addresses can use the EUI-64 method for quick generation.
* B. Anycast addresses are only used as destination addresses.
* C. An interface can have multiple global unicast addresses with different prefixes.
HCIP-Datacom-Core Reference
* IPv6 address types and priority behaviors are detailed in the IPv6 addressing sections.

Explanation:
1 - Idle
2 - Connect
3 - OpenSent
4 - OpenConfirm
5 - Established
6 - Active
TheBGP finite state machinedefines how a BGP speaker transitions through various states when establishing and maintaining a BGP session. Below is the role of each state:
Idle (1)- BGP is waiting to start a connection. Initial state of the BGP process.
Connect (2)- BGP initiates a TCP connection to the peer.
OpenSent (3)- TCP connection is established; BGP sends an OPEN message and waits for one from the peer.
OpenConfirm (4)- BGP has received a valid OPEN message and is now expecting a KEEPALIVE.
Established (5)- BGP session is fully established; UPDATE messages can now be exchanged.
Active (6)- If the TCP connection fails in Connect state, BGP transitions to Active and will retry connection.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"BGP goes through the following states in order: Idle # Connect # Active # OpenSent # OpenConfirm # Established. The transition depends on the success or failure of TCP connection setup and BGP message exchanges." (Chapter: BGP Principles - Section: BGP State Machine)

Notification Message Purpose
* BGP Notification messages are used to report errors or terminate a connection. They do not request peers to resend routing information after routing policies are changed.
* Routing updates following policy changes require manual resynchronization, not Notification messages.
HCIP-Datacom-Core Reference
* The purpose and usage of Notification messages are discussed in the BGP operation chapters.

Comprehensive and Detailed Step-by-Step Explanation:
1. Understanding the Prefix List Configuration:
The command ip ip-prefix test index 10 permit 10.0.0.0 8 less-equal 32 defines the following:
The prefix base is 10.0.0.0 with a mask length of 8 bits.
The less-equal 32 condition allows routes with mask lengths ranging from 8 to 32 bits to match.
2. Analysis of Each Route:
Option A: 10.1.1.1/32
Correct.
The prefix 10.1.1.1/32 falls within the 10.0.0.0/8 network range and has a mask length of 32 bits, which satisfies the less-equal 32 condition.
Option B: 10.1.1.0/6
Incorrect.
The prefix 10.1.1.0/6 has a mask length of 6 bits, which is shorter than the base prefix length of 8. It does not satisfy the condition.
Option C: 10.1.1.0/24
Correct.
The prefix 10.1.1.0/24 falls within the 10.0.0.0/8 network range and has a mask length of 24 bits, which satisfies the less-equal 32 condition.
Option D: 10.0.0.0/16
Correct.
The prefix 10.0.0.0/16 falls within the 10.0.0.0/8 network range and has a mask length of 16 bits, which satisfies the less-equal 32 condition.
3. Summary:
The prefixes that match the configuration are 10.1.1.1/32, 10.1.1.0/24, and 10.0.0.0/16.
Huawei HCIA-Datacom Study Guide, Chapter "IP Prefix Lists."
Huawei Configuration Examples for ACL and Prefix Lists.

security policy