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Packet size limited during capture

I am trying to capture traffic of BGP peering on a cisco router using Embedded Packet Capturing: Even I set the size of the buffer to the maximum: 102400 but still after TCP 3 way handshake I got "Packet size limited during capture" and in the packet end [Packet size limited during capture: BGP truncated].

I am using this config on the router:

monitor capture buffer B1 size 102400
monitor capture point ip process-switched C1 both
monitor capture point associate C1 B1
monitor capture point start C1
monitor capture point stop C1
monitor capture buffer B1 export tftp://x.x.x.x/R1.bgp.pcap

in the Wireshark preference snaplen is set to default as well. any ideas what's the issue ?

Packet size limited during capture

I am trying to capture traffic of BGP peering on a cisco router using Embedded Embeded Packet Capturing: Even I set the size of the buffer to the maximum: 102400 maximum :102400 but still after TCP 3 way handshake I got "Packet size limited during capture" and in the packet end [Packet size limited during capture: BGP truncated].truncated ]:

I am using this config on the router:

router:
monitor capture buffer B1 size 102400
monitor capture point ip process-switched C1 both
monitor capture point associate C1 B1
monitor capture point start C1
monitor capture point stop C1
monitor capture buffer B1 export tftp://x.x.x.x/R1.bgp.pcap

tftp://x.x.x.x/R1.bgp.pcap

in the Wireshark wireshark preference snaplen is set to default as well. any ideas what's the issue ?