Annotation of embedaddon/quagga/isisd/isis_constants.h, revision 1.1.1.2
1.1 misho 1: /*
2: * IS-IS Rout(e)ing protocol - isis_constants.h
3: *
4: * Copyright (C) 2001,2002 Sampo Saaristo
5: * Tampere University of Technology
6: * Institute of Communications Engineering
7: *
8: * This program is free software; you can redistribute it and/or modify it
9: * under the terms of the GNU General Public Licenseas published by the Free
10: * Software Foundation; either version 2 of the License, or (at your option)
11: * any later version.
12: *
13: * This program is distributed in the hope that it will be useful,but WITHOUT
14: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16: * more details.
17:
18: * You should have received a copy of the GNU General Public License along
19: * with this program; if not, write to the Free Software Foundation, Inc.,
20: * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21: */
22:
23: #ifndef ISIS_CONSTANTS_H
24: #define ISIS_CONSTANTS_H
25:
26: /*
27: * Architectural constant values from p. 35 of ISO/IEC 10589
28: */
29:
1.1.1.2 ! misho 30: #define MAX_NARROW_LINK_METRIC 63
! 31: #define MAX_NARROW_PATH_METRIC 1023
! 32: #define MAX_WIDE_LINK_METRIC 0x00FFFFFF /* RFC4444 */
! 33: #define MAX_WIDE_PATH_METRIC 0xFE000000 /* RFC3787 */
1.1 misho 34: #define ISO_SAP 0xFE
35: #define INTRADOMAIN_ROUTEING_SELECTOR 0
36: #define SEQUENCE_MODULUS 4294967296
37: #define RECEIVE_LSP_BUFFER_SIZE 1492
38:
39: /*
40: * implementation specific jitter values
41: */
42:
1.1.1.2 ! misho 43: #define IIH_JITTER 10 /* % */
1.1 misho 44: #define MAX_AGE_JITTER 5 /* % */
45: #define MAX_LSP_GEN_JITTER 5 /* % */
46: #define CSNP_JITTER 10 /* % */
47: #define PSNP_JITTER 10 /* % */
48:
49: #define RANDOM_SPREAD 100000.0
50:
1.1.1.2 ! misho 51: #define ISIS_LEVELS 2
! 52: #define ISIS_LEVEL1 1
! 53: #define ISIS_LEVEL2 2
! 54:
1.1 misho 55: /*
56: * Default values
1.1.1.2 ! misho 57: * ISO - 10589 Section 7.3.21 - Parameters
! 58: * RFC 4444
1.1 misho 59: */
60: #define MAX_AGE 1200
61: #define ZERO_AGE_LIFETIME 60
1.1.1.2 ! misho 62: #define MIN_LSP_LIFETIME 350
! 63: #define MAX_LSP_LIFETIME 65535
! 64: #define DEFAULT_LSP_LIFETIME 1200
! 65:
! 66: #define MIN_MAX_LSP_GEN_INTERVAL 1
! 67: #define MAX_MAX_LSP_GEN_INTERVAL 65235
! 68: #define DEFAULT_MAX_LSP_GEN_INTERVAL 900
! 69:
! 70: #define MIN_MIN_LSP_GEN_INTERVAL 1
! 71: #define MAX_MIN_LSP_GEN_INTERVAL 120 /* RFC 4444 says 65535 */
! 72: #define DEFAULT_MIN_LSP_GEN_INTERVAL 30
! 73:
1.1 misho 74: #define MIN_LSP_TRANS_INTERVAL 5
75:
1.1.1.2 ! misho 76: #define MIN_CSNP_INTERVAL 1
! 77: #define MAX_CSNP_INTERVAL 600
! 78: #define DEFAULT_CSNP_INTERVAL 10
! 79:
! 80: #define MIN_PSNP_INTERVAL 1
! 81: #define MAX_PSNP_INTERVAL 120
! 82: #define DEFAULT_PSNP_INTERVAL 2
! 83:
! 84: #define MIN_HELLO_INTERVAL 1
! 85: #define MAX_HELLO_INTERVAL 600
! 86: #define DEFAULT_HELLO_INTERVAL 3
! 87:
! 88: #define MIN_HELLO_MULTIPLIER 2
! 89: #define MAX_HELLO_MULTIPLIER 100
! 90: #define DEFAULT_HELLO_MULTIPLIER 10
1.1 misho 91:
1.1.1.2 ! misho 92: #define MIN_PRIORITY 0
! 93: #define MAX_PRIORITY 127
1.1 misho 94: #define DEFAULT_PRIORITY 64
1.1.1.2 ! misho 95:
! 96: /* min and max metric varies by new vs old metric types */
! 97: #define DEFAULT_CIRCUIT_METRIC 10
! 98:
! 99: #define METRICS_UNSUPPORTED 0x80
! 100:
! 101: #define MINIMUM_SPF_INTERVAL 1
! 102:
! 103: #define ISIS_MAX_PATH_SPLITS 64
1.1 misho 104:
105: /*
106: * NLPID values
107: */
108: #define NLPID_IP 204
109: #define NLPID_IPV6 142
110: #define NLPID_SNAP 128
111: #define NLPID_CLNP 129
112: #define NLPID_ESIS 130
113:
114: /*
115: * Return values for functions
116: */
117: #define ISIS_OK 0
118: #define ISIS_WARNING 1
119: #define ISIS_ERROR 2
120: #define ISIS_CRITICAL 3
121:
122: /*
123: * IS-IS Circuit Types
124: */
125:
126: #define IS_LEVEL_1 1
127: #define IS_LEVEL_2 2
128: #define IS_LEVEL_1_AND_2 3
129:
130: #define SNPA_ADDRSTRLEN 18
131: #define ISIS_SYS_ID_LEN 6
1.1.1.2 ! misho 132: #define ISIS_NSEL_LEN 1
1.1 misho 133: #define SYSID_STRLEN 24
134:
135: /*
136: * LSP bit masks
137: */
138: #define LSPBIT_P 0x80
139: #define LSPBIT_ATT 0x78
140: #define LSPBIT_OL 0x04
141: #define LSPBIT_IST 0x03
142:
143: /*
144: * LSP bit masking macros
145: * taken from tcpdumps
146: * print-isoclns.c
147: */
148:
149: #define ISIS_MASK_LSP_OL_BIT(x) ((x)&0x4)
150: #define ISIS_MASK_LSP_IS_L1_BIT(x) ((x)&0x1)
151: #define ISIS_MASK_LSP_IS_L2_BIT(x) ((x)&0x2)
152: #define ISIS_MASK_LSP_PARTITION_BIT(x) ((x)&0x80)
153: #define ISIS_MASK_LSP_ATT_BITS(x) ((x)&0x78)
154: #define ISIS_MASK_LSP_ATT_ERROR_BIT(x) ((x)&0x40)
155: #define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) ((x)&0x20)
156: #define ISIS_MASK_LSP_ATT_DELAY_BIT(x) ((x)&0x10)
157: #define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) ((x)&0x8)
158:
159: #define LLC_LEN 3
160:
161: /* we need to be aware of the fact we are using ISO sized
162: * packets, using isomtu = mtu - LLC_LEN
163: */
164: #define ISO_MTU(C) \
1.1.1.2 ! misho 165: ((if_is_broadcast ((C)->interface)) ? \
! 166: (C->interface->mtu - LLC_LEN) : (C->interface->mtu))
1.1 misho 167:
168: #ifndef ETH_ALEN
169: #define ETH_ALEN 6
170: #endif
171:
172: #endif /* ISIS_CONSTANTS_H */
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