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- aaaattttmmmmaaaarrrrpppp((((1111MMMM)))) aaaattttmmmmaaaarrrrpppp((((1111MMMM))))
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- NNNNAAAAMMMMEEEE
- atmarp - display or manage IP address to virtual circuit mappings for
- TCP/IP over ATM.
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- aaaattttmmmmaaaarrrrpppp ----aaaa [ ----nnnnllll ]
- aaaattttmmmmaaaarrrrpppp ----ffff _p_v_c_f_i_l_e [ ----eeee _d_e_f_a_u_l_t-_b_p_s ]
- aaaattttmmmmaaaarrrrpppp ----dddd _h_o_s_t ((((SSSSPPPPAAAANNNNSSSS eeeennnnttttrrrriiiieeeessss OOOONNNNLLLLYYYY))))
- aaaattttmmmmaaaarrrrpppp ----pppp ((((SSSSPPPPAAAANNNNSSSS eeeennnnttttrrrriiiieeeessss OOOONNNNLLLLYYYY))))
- aaaattttmmmmaaaarrrrpppp ----ssss _h_o_s_t _i_n_t_e_r_f_a_c_e _a_a_l _v_p_i _v_c_i ((((SSSSPPPPAAAANNNNSSSS eeeennnnttttrrrriiiieeeessss OOOONNNNLLLLYYYY))))
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- aaaattttmmmmaaaarrrrpppp ----aaaa displays the current ATM ARP table. Each interface can be
- configured to use standard UNI signaling or SPANS (Simple Protocol for
- ATM Network Signaling), but not both. SPANS is a signaling protocol that
- was designed at FORE Systems prior to the existance of standard ATM
- signaling protocols (Note: The SPANS options are only available on Origin
- and Onyx2). When the ATM ARP table is displayed, the entries for the UNI
- signaling interfaces will be displayed separately from the entries for
- the SPANS signaling interfaces. The UNI entries are displayed first,
- followed by the SPANS entries. The ATM ARP table contains IP address to
- ATM address translations and IP address to virtual circuit translations
- for TCP/IP over ATM. The ATM ARP table can contain both pre-configured
- permanent translations (permanent virtual circuits) and dynamically
- created translations (switched virtual circuits). The ----llll option tells
- aaaattttmmmmaaaarrrrpppp to print out ATM addresses associated with each entry in the ARP
- table. The ----llll option only applies to the UNI entries and does nothing
- for the SPANS entries. The ----nnnn option tells aaaattttmmmmaaaarrrrpppp to print the IP
- addresses in standard dot-notation instead of attempting to resolve the
- IP address to a qualified host name.
-
- For the UNI entries, each entry displayed by aaaattttmmmmaaaarrrrpppp ----aaaa can have the
- following information: an IP address, a virtual circuit (identified by
- port, VPI, and VCI), an ATM address (if using the -l option), and these
- flags indicating the state of the entry:
-
- COMPL The IP address has been resolved to either an ATM
- address or a permanent virtual circuit.
-
- CONN The entry has an associated virtual circuit
- (identified by port, VPI, VCI).
-
- PEND The system is in the process of connecting to the
- destination represented by the entry.
-
- PVC The entry resolves the IP address to a permanent
- virtual circuit (PVC).
-
- VALIDATE The entry is in the process of being validated via
- Inverse ATM ARP.
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- PPPPaaaaggggeeee 1111
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- aaaattttmmmmaaaarrrrpppp((((1111MMMM)))) aaaattttmmmmaaaarrrrpppp((((1111MMMM))))
-
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- NAK The ATM ARP server has NAK'ed this IP address. It is
- unreachable.
-
- NOSNAP The associated virtual circuit is not using 802.2 LLC
- SNAPs for encapsulating IP.
-
- For the SPANS entries, each entry displayed by aaaattttmmmmaaaarrrrpppp ----aaaa can have the
- following information: an IP address, an interface name, the AAL, a
- virtual circuit (identified by VPI, and VCI), and these flags indicating
- the state of the entry:
-
- SPANS The entry is infact a SPANS entry.
-
- Pending Address resolution has begun but has not yet
- completed.
-
- Complete Address resolution is completed and the virtual
- circuit has been established.
-
- When aaaattttmmmmaaaarrrrpppp is invoked with the ----ffff option, it becomes a daemon that
- manages permanent virtual circuits (PVCs) for TCP/IP traffic over ATM.
- When aaaattttmmmmaaaarrrrpppp ----ffff is used to manage PVCs, it is usually invoked by the ATM
- start-up script, /etc/init.d/atm, using the file /var/atm/pvc.conf as the
- PVC table.
-
- The _p_v_c_f_i_l_e contains one mapping per line. Blank lines are ignored and
- any characters to the right of a # character are ignored to allow
- comments in the file. Each line has the following format:
-
- IP-address port VPI VCI flags
-
-
-
- _I_P-_a_d_d_r_e_s_s
- This is an IP address or a hostname that can be resolved to an IP
- address.
-
- _p_o_r_t This decimal integer is the unit number of the actual ATM interface
- over which the virtual circuit to this destination is established.
- Note that virtual circuits to the same sub-net can go across
- different interfaces and that each port can support multiple sub-
- nets.
-
- _V_P_I _V_C_I
- These two integers are the VPI/VCI pair of the virtual circuit for
- this destination. The values can be either in decimal or
- hexadecimal (preceded with 0x).
-
- _f_l_a_g_s
- Currently, the only flag is nnnn which, if set, inhibits sending of
- 802.2 SNAP LLC headers on IP packets sent on that VC.
-
-
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- PPPPaaaaggggeeee 2222
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- aaaattttmmmmaaaarrrrpppp((((1111MMMM)))) aaaattttmmmmaaaarrrrpppp((((1111MMMM))))
-
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-
- When the ----ffff option is used, atmarp forks off a daemon process to create
- the virtual circuits for each valid line in _p_v_c_f_i_l_e. The daemon process
- then sleeps until it is killed. When the process is killed, the virtual
- circuits will be closed and the mappings deleted.
-
- If the daemon process is sent a SSSSIIIIGGGGHHHHUUUUPPPP signal, it will read the _p_v_c_f_i_l_e
- again, incorporate any additional mappings, and delete any removed
- mappings. This allows an administrator to modify the _p_v_c_f_i_l_e and have
- the changes take effect by invoking kkkkiiiillllllllaaaallllllll ----HHHHUUUUPPPP aaaattttmmmmaaaarrrrpppp.... The ----ffff option
- applies only to UNI signaling interfaces and does nothing for the SPANS
- entries.
-
- The ----dddd option tells aaaattttmmmmaaaarrrrpppp to delete an entry from the table of SPANS
- entries. The hhhhoooosssstttt entry can be specified as a hostname or IP address (in
- dot-notation). The ----dddd option applies only to SPANS entries and does
- nothing for the UNI entries.
-
- The ----pppp option tells aaaattttmmmmaaaarrrrpppp to purge all the entries from the table of
- SPANS entries. The ----pppp option applies only to SPANS entries and does
- nothing for the UNI entries.
-
- The ----ssss option tells aaaattttmmmmaaaarrrrpppp to set a PVC entry into the table of SPANS
- entries. The hhhhoooosssstttt (remote host) can be specified as a hostname or IP
- address (in dot-notation). The iiiinnnntttteeeerrrrffffaaaacccceeee is the physical interface the
- PVC is to use and is specified as the interface name as it appears in the
- "netstat -i" output display. (ie. atm0) The aaaaaaaallll is the AAL type of the
- connection and must be specified as 5. The vvvvppppiiii is the Virtual Path
- Identifier of the connection and must be specified as 0. The vvvvcccciiii is the
- Virtual Circuit Identifier of the connection and must be specified as a
- number between 33 and 255. The ----ssss option applies only to SPANS
- interfaces and does nothing for the UNI entries.
-
- EEEEXXXXAAAAMMMMPPPPLLLLEEEESSSS
- Here is an example pvcfile showing three hosts:
-
- #
- #
- # hostname port VPI VCI flags
- # -------- ---- --- --- -----
- atm-host1 0 0 201
- atm-host2 0 0 0x34
- atm-host3 1 16 203 n
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- FFFFIIIILLLLEEEESSSS
- /etc/init.d/atm
- /var/atm/pvc.conf
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- atm(7M), if_atm(7M), if_atmarp(7M), atmconfig(1M), atmstat(1M),
- ifatmconfig(1M), spansd(1m), killall(1M)
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- PPPPaaaaggggeeee 3333
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