Hitachi GR2000 manual Number of Tag-VLANs to be Set in Multi-Home

Router Model			Number of Tag-VLAN
			Per RP	Per Router
GR2000-2S			Tag-VLAN cannot be set.
GR2000-4S		256		256
GR2000-6H	BCU-H300H	256		256
	BCU-H850H			256 x RP
GR2000-10H	BCU-M300H			256
	BCU-M850H			256 x RP
GR2000-20H	BCU-L300H			256
	BCU-L850H			256 x RP

4.2.13.3Number of Tag-VLANs to be Set in Multi-Home

Like an IP address, Tag-VLAN can be set to the multi-home connection of LAN. Therefore, the maximum number of Tag-VLANs to be set decreases when an IP address is assigned to an interface for the purpose except Tag-VLAN. The maximum number of Tag-VLANs to be set at that time is shown in Table 4-75.