[ClusterLabs] corosync totem.token too long may cause pacemaker(cluster) unstable?

[cys]

Hi,
We changed totem.token from 3s to 60s. Then something strange were observed, such as unexpected node offline.
I read corosync.conf manpage, but still don't understand the reason.
Can anyone explain this? or maybe our conf is broken?

Our corosync.conf:

compatibility: whitetank
quorum {
        provider: corosync_votequorum
        two_node: 0
}
totem {
        version: 2
        token: 60000
        token_retransmits_before_loss_const: 10
        join: 60
        consensus: 3600
        vsftype: none
        max_messages: 20
        clear_node_high_bit: yes
        rrp_mode: none
        secauth: off
        threads: 2
        transport: udpu
        interface {
                ringnumber: 0
                bindnetaddr: 39.39.0.5
                mcastport: 5405
   	}
}
amf {
        mode: disabled
}
aisexec {
        user: root
        group: root
}
nodelist {
        node {
                ring0_addr: 39.39.0.4
                nodeid: 1
        }
        node {
                ring0_addr: 39.39.0.5
                nodeid: 2
        }
        node {
                ring0_addr: 39.39.0.6
                nodeid: 3
        }
}