多选题Which two statements are true when configuring a domain-id? （）AThe default OSPF domain-id is 127.0.0.1.BIn most cases, a domain-id must be configured.CIn most cases, you do not need to configure a domain-id.DFor a layer 3 VPN connecting multiple OSPF domains, configuring a domain-id can help control LSA translations.
多选题
Which two statements are true when configuring a domain-id? （）
A
The default OSPF domain-id is 127.0.0.1.
B
In most cases, a domain-id must be configured.
C
In most cases, you do not need to configure a domain-id.
D
For a layer 3 VPN connecting multiple OSPF domains, configuring a domain-id can help control LSA translations.
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