My network topology is below, when I login the CRS317, ping H3C S3100 and E3 router with 6 GE ports cannot get reply, but ping H3C S5120v2 and H3C s5024pv2 will get right reply.
But login S5120v2 ping any of these devices, will get right reply.

The S5120v2 and CRS317 config is below:
S5120v2:
#
vlan 1
description local management vlan
ip-subnet-vlan 0 ip 198.18.31.0 255.255.255.0
#
vlan 2
description office-work vlan
#
vlan 2112
description Outer vlan of GH & mapping for management vlan
dhcp snooping trust interface Bridge-Aggregation2
dhcp snooping trust interface Bridge-Aggregation3
#
vlan 2113
description Outer vlan of GH devices & smart-link cfd track
#
#
interface Bridge-Aggregation2
description link to E3-router
port link-type hybrid
port hybrid vlan 2 200 1331 2112 tagged
port hybrid vlan 1 2113 untagged
port hybrid pvid vlan 2113
qinq enable
vlan mapping 2 translated-vlan 2112
vlan mapping nest range 3 to 2111 2114 to 3999 nested-vlan 2113
port hybrid ip-subnet-vlan vlan 1
vlan precedence ip-subnet-vlan
jumboframe enable 1526
link-aggregation mode dynamic
undo stp enable
#
interface Bridge-Aggregation3
description link to CRS317
port link-type hybrid
port hybrid vlan 1 to 2 1331 2112 2311 to 2313 tagged
port hybrid vlan 2113 untagged
port hybrid pvid vlan 2113
qinq enable
vlan mapping 2 translated-vlan 2112
vlan mapping nest range 3 to 2111 2114 to 3999 nested-vlan 2113
port hybrid ip-subnet-vlan vlan 1
jumboframe enable 1526
link-aggregation mode dynamic
undo stp enable
#
interface Bridge-Aggregation4
description link to S5024pv2
port link-type hybrid
port hybrid vlan 2 200 1331 2112 2311 to 2313 tagged
port hybrid vlan 1 2113 untagged
port hybrid pvid vlan 2113
qinq enable
vlan mapping 2 translated-vlan 2112
vlan mapping nest range 3 to 2111 2114 to 3999 nested-vlan 2113
port hybrid ip-subnet-vlan vlan 1
jumboframe enable 1526
undo stp enable
#
interface GigabitEthernet1/0/7
description link to S3100-010D
port link-type hybrid
port hybrid vlan 2 2112 tagged
port hybrid vlan 1 untagged
qinq enable
vlan mapping 2 translated-vlan 2112
undo jumboframe enable
undo stp enable
loopback-detection enable vlan 1 to 4094
#
interface NULL0
#
interface Vlan-interface1
ip address 198.18.31.8 255.255.255.0
#
interface Vlan-interface2113
ip address 198.19.0.31 255.255.255.0
#
CRS317:
# 2023-07-28 14:20:59 by RouterOS 7.10.2
/interface bridge
add arp=proxy-arp mtu=1500 name=bridge-GJG protocol-mode=none vlan-filtering=yes
/interface ethernet
set [ find default-name=ether1 ] l2mtu=1522 name=ether1-RB450Gx4
set [ find default-name=sfp-sfpplus15 ] l2mtu=1522 loop-protect=off name=\
sfp-sfpplus15-bonding-S5120v2
set [ find default-name=sfp-sfpplus16 ] l2mtu=1522 loop-protect=off name=\
sfp-sfpplus16-bonding-S5120v2
/interface vlan
add interface=bridge name=vlan1 vlan-id=1
add interface=bridge loop-protect=off name=vlan2 vlan-id=2
add interface=bridge loop-protect=off name=vlan4019 vlan-id=4019
/interface bonding
add mode=802.3ad name=bonding-S5120v2 slaves=\
sfp-sfpplus15-bonding-S5120v2,sfp-sfpplus16-bonding-S5120v2
/interface bridge port
add bridge=bridge interface=bonding-S5120v2 pvid=4019 trusted=yes
/interface bridge vlan
add bridge=bridge tagged=bonding-S5120v2-GJG untagged=bridge vlan-ids=1
add bridge=bridge tagged=bridge,bonding-S5120v2 vlan-ids=2
add bridge=bridge tagged=bridge,untagged=ether1-RB450Gx4,bonding-S5120v2 vlan-ids=4019
/ip address
add address=198.18.31.10/24 interface=bridge network=198.18.31.0
add address=198.19.0.30/24 interface=vlan4019 network=198.19.0.0
add address=192.0.2.10/24 interface=vlan2 network=192.0.2.0
Debian server is link to vlan 1 in RB450, they use 203.0.113.0/24, my PC is link to S5024, access port in vlan 2.
Problem is CRS317 is DHCP server in vlan 2, and it ping some devices cannot get any reply, but some can. until I add arp configure, like this:
/ip arp
add address=198.18.31.14 comment="S3100 arp send to S5120v2" interface=bridge \
mac-address=3C:F5:CC:CF:F7:77
add address=198.18.31.1 comment="E3 router arp send to S5120v2" interface=bridge \
mac-address=3C:F5:CC:CF:F7:77
Did I misconfig something?
